Oerth
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Oerth is the name of the planet on which the World of Greyhawk campaign setting is located. Oerth has an axial tilt of 30 degrees, which should cause greater extremes of temperature in different seasons but for wizardly and divine magic shifting weather patterns to be more favorable to the populace (at least the god-fearing folks).
Physical Features[edit | edit source]
The Adventure Begins gives Oerth's circumference as 25,200 miles (40,555.47 km), and its diameter is 8,021.5 miles (12,909.35 km).[1]
Oerth has four continents, the largest of which is Oerik, lying mainly in the Northern Hemisphere. Southeast of Oerik lies the much-smaller landmass of Hepmonaland, lying in the tropics. Hyperboria, also called Telchuria (after Telchur, the god of Winter), lies at the north pole, while an unnamed fourth continent lies in the southern hemisphere. Gary Gygax's Gord the Rogue novels refer to a continent called Gonduria.[2]
Oerth has four oceans, including the Solnor Ocean, the Dramidj Ocean which circles Telchuria, the Ocean of Storms south of Oerik, and the Sea of Thunder encompassing Polaria.[3]
Oerth also has a number of islands, the largest being the archipelago known as Fireland in the northern Solnor. Polaria is a chain of mountainous islands covered for at least part of the year by the southern polar ice cap.
The easternmost part of Oerik, the Flanaess, has received the lion's share of detail, though Hepmonaland has received significant attention. Western Oerik was the setting for Wizards of the Coast's original miniature line, Chainmail, which was cancelled in 2002.
Author Frank Mentzer, in a series of early RPGA modules, added a small territory called New Empyrea to the world, across the Solnor Ocean from the Flanaess, but it has not been mentioned in any officially published Greyhawk products, though Gary Gygax seems to have at least approved of its inclusion, at some point before the World of Greyhawk™ global map was published in 1996 in Dragon Annual #1.[4]
Oerth's planetary system[edit | edit source]
It takes exactly 24 hours for Oerth to make one revolution on its axis. Oerth lies at the center of Greyspace. Unlike most planets, Oerth does not orbit its sun, Liga. Instead, the sun, and all other planets in the crystal sphere, orbit Oerth. Thus, Greyspace is geocentric. Oerth's "moons," Celene (Kule) and Luna (Raenei), are in fact the first and second planets in the system, with Liga being the third. From Oerth, planets beyond Liga appear to the naked eye as wandering stars.
Liga orbits the Oerth once every 364 days,[note 1]thus the Oerthly year is slightly shorter than that on Earth. Luna has a 28 day lunar cycle, while Celene's cycle is 91 days.
Alternate Oerths[edit | edit source]
Official known Oerths[edit | edit source]
Oerth was originally described by Gary Gygax as one of "an endless succession of Earths".[5][note 2]
In a 1985 article for Polyhedron Newszine, Gary Gygax revealed several "alternate Oerths" while explaining the setting for his Heroes Challenge game books, co-written with author Flint Dille and published under the aegis of the Dungeons & Dragons Entertainment Corporation by the Wanderer Book division of Simon & Schuster.
"... [the] action takes place on Yarth, a place somewhat similar to Oerth, the setting of Greyhawk, et al. It has fewer magical properties than Oerth but more than Earth. It is not impossible that additional works will be contracted for in months to come, action being set on Yarth or perhaps another alternate world, Aerth. On Earth, magic is virtually non-existent. On Uerth, dweomers are weak, chancy things. Yarth has a sprinkling of things magical, and Oerth is pure magic."
—Gary Gygax ([6])
Other references to these alternate Oerths appear in the Gord the Rogue short story anthology Night Arrant as well as in Gygax's Epic of Ærth campaign setting for the Dangerous Journeys roleplaying game.
The five parallel worlds of Oerth—Aerth, Earth, Oerth, Uerth, and Yarth—were mentioned in the third Edition adventure Expedition to the Ruins of Greyhawk[7] and thus found their way into third edition canon.
Other versions of Oerth[edit | edit source]
In addition to the officially established parallel versions of Oerth, early works by Gary Gygax (The Gnome Cache, 1976) and Andre Norton (Quag Keep, 1978) feature an Oerth which contains familiar locations but has radically different geography and history. (e.g.—Free City of Greyhawk, Sea of Dust, Great Kingdom)[5][note 2]
Parallel locations in other settings[edit | edit source]
The world of Mystara (the Known World setting) depicts a few locations also found on Oerth, such as Blackmoor and the Duchy of Ten, because Gygax and Arneson shared world-creation and played in each other's campaigns. The Isle of Dread was also later placed in Greyhawk, thus making a version in each setting.
External links[edit | edit source]
Disclaimer:Any lore presented through the following links does not necessarily adhere to established officially published content, and the views expressed do not necessarily represent the views of the editors of this wiki.
Gallery[edit | edit source]
Maps[edit | edit source]
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Oerth depicted in the D&D Gazetteer the LGG
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Oerth, as depicted in Dragon Annual #1 (1996). Cartography by Sutherland, Dave
References[edit | edit source]
Notes[edit | edit source]
- ↑ The length of the year is most commonly given as 364 days. In the 1983 WoG box set and after, Gygax changed the length to 364 days. However, in the 1980 Folio (p4) Gygax gave the year length as 360 days, which was shorter due to each festival being only 6 days instead of 7. Also, in SJR6 Greyspace (p7) (1992), the length of the year is given as 365 days.
- ↑ a b Gygax, "The Gnome Cache", Dragon #1, 1976—"Far from our probability line is a world called by its inhabitants Oerth. It is very similar to Earth in many ways, but it is also quite different ... If the learned men of Oerth were able to tell you its geography, they would say that in relation to our planet they are quite alike. Asia is a trifle smaller, Europe and North America a trifle larger — but the scientists (or rather philosophers) of Oerth are not able to explain this for two reasons: They neither know of the alternate worlds in Oerth’s probability line nor do they have any sure knowledge of Oerth’s geography outside their immediate areas."
Citations[edit | edit source]
- ↑ The Adventure Begins (1998), p.9.
- ↑ Gygax, Gary. Dance of Demons, p.402.
- ↑ The Adventure Begins (1998), p.12.
- ↑ Dragon #A1 (Annual #1 1996), p.73.
- ↑ a b Dragon #1 (Jun 1976), p.30. The Gnome Cache, Gary Gygax
- ↑ Gygax, Gary (Nov 1984). "Why Gargoyles Don't Have Wings but Should". Polyhedron Newszine #21 4 (6): 9. Lake Geneva, WI: TSR, inc..
- ↑ Expedition to the Ruins of Greyhawk (2007), p.91.
Bibliography[edit | edit source]
- Findley, Nigel. Greyspace. Lake Geneva, WI: TSR, 1992.
- Gygax, Gary. Epic of Ærth. Bloomington, IL: GDW, 1992.
- ———. Night Arrant (New Infinities, 1987).
- ———. "Why Gargoyles Don't Have Wings but Should." Polyhedron #21. Lake Geneva, WI: TSR, 1984.
- ———. World of Greyhawk Fantasy Game Setting. Lake Geneva, WI: TSR, 1983.
- Holian, Gary. "Measuring up the Oerth." Oerth Journal #4. Council of Greyhawk, 1996. Available online:[1]
- Holian, Gary, Erik Mona, Sean K Reynolds, and Frederick Weining. Living Greyhawk Gazetteer. Renton, WA: Wizards of the Coast, 2000.
- Mentzer, Frank. Doc's Island. Lake Geneva, WI: TSR Hobbies, 1983.
- ———. Egg of the Phoenix. Lake Geneva, WI: TSR Hobbies, 1982.
- ———. The Investigation of Hydell. Lake Geneva, WI: TSR Hobbies, 1982.
- ———. To the Aid of Falx. Lake Geneva, WI: TSR Hobbies, 1982.
- Mentzer, Frank, and Paul Jaquays. Egg of the Phoenix. Lake Geneva, WI: TSR, 1987.
- Moore, Roger E. Greyhawk: The Adventure Begins. Renton, WA: TSR, 1998.
- ———. "Oerth from the Ground Up." Oerth Journal #3. Council of Greyhawk, 1996. Available online:[2]
- Williams, Skip, and David C. Sutherland III. "Beyond the Flanaess." Dragon Annual #1. Lake Geneva, WI: TSR, 1996.
Encyclopedia Greyhawkania Index
The Index is based on previous work of Jason Zavoda through '08, and his work as continued and updated by Eric Johnson, Richard DiIoia, Jason "PupickDad" Jacobson, a French fan group, and numerous other fans over the years. The wiki page for the EGI has a list of sources, full product names, abbreviations, and a link to the full, downloadable index.
| Topic | Type | Description | Product | Page/Card/Image
|
|---|---|---|---|---|
| An Inspection of the Nature of Oerth | Item | Book, | The Adventure Begins | 12 |
| Black Lake (Underoerth) | Geographical feature | Lake, | Dungeon magazine #070 | 52, 63 |
| Cloaker Rift (Underoerth) | Place | Dungeon magazine #070 | 49, 61, 62, 67, 68 | |
| Cloaker Rift (Underoerth) | Place | Dungeon magazine #072 | 84 | |
| Cynidicea (Underoerth) | Settlement | Settlement, | Return to the Keep on the Borderland | 18 |
| Deepearth {Deepoerth} | Place | The City of Greyhawk: Folks, Feuds and Factions | 52 | |
| Deepearth {Deepoerth} | Place | Dungeon magazine #070 | 49, 51 | |
| Fungus Lake {Fungal} (Underoerth) | Geographical feature | Lake, | Dungeon magazine #085 | 47, 48, 49, 50 |
| Ghostwood (Underoerth) | Geographical feature | Woodland, | Dungeon magazine #070 | 58, 59 |
| Grand Cascade (Underoerth) | Geographical feature | Waterway, | Dungeon magazine #070 | 63 |
| Grand Cascade (Underoerth) | Geographical feature | Waterway, | Dungeon magazine #072 | 84 |
| Greyhawk, World of {Oerth} | Geographical feature | Reference | SEE Oerth {Oerthe, World of Greyhawk} | |
| Kilenor (Underoerth) | Settlement | Settlement, | Dungeon magazine #070 | 49, 51, 59, 64, 67, 68, 78 |
| Kilenor (Underoerth) | Settlement | Settlement, | Dungeon magazine #072 | 84 |
| Laetan River (Underoerth) | Geographical feature | River, | Dungeon magazine #070 | 55, 58, 63, 67 |
| Laetan River (Underoerth) | Geographical feature | River, | Dungeon magazine #072 | 84 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Artifact of Evil | 121 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | LT2 Crypt of Lyzandred the Mad | 32 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dance of Demons | 384 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dragon magazine #068 | 44 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dragon magazine #204 | 56 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dragon magazine #241 | 78 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dragon magazine #263 | 51 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dragon magazine #AN4 | 19, 20 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dungeon magazine #041 | 47 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dungeon magazine #077 | 36 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Dungeon magazine #148 | 45 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | The Fright At Tristor | 5 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | From the Ashes: Atlas of the Flanaess | 68 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | From the Ashes: References Card | #1 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Greyhawk Adventures | 103 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Ivid the Undying | 48, 65, 122, 136 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Living Greyhawk, Living Onnwal Gazetteer, D&D 3.5e | 16, 17 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Living Greyhawk Gazetteer | 2, 129, 179 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Night Arrant | 249, 341 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | ONW1-02 To Catch A Traitor | 6 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Player's Guide to Greyhawk | 3, 13, 14 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Polyhedron magazine #092 | 14 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Return of the Eight | 2, 3, 10, 19-21, 48, 49, 51, 54 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Spelljammer Boxed Set: Concordance of Arcane Space | 78, 80, 91 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Spelljammer Boxed Set: Lorebook of the Void | 89, 90 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Spelljammer Boxed Set: Planetary Display Map (Poster) | Poster |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | SJR6 Greyspace | 2, 3, 6, 7, 10, 17-22, 23, 27, 33, 39, 43, 48, 54, 60, 66, 76, 80 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | Sea of Death | 317 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | The Adventure Begins | 9, 40, 42, 45 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | The Scarlet Brotherhood | 38, 64 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | The World of Greyhawk Fantasy World Setting (Folio) | 4 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | WGR4 The Marklands | 46, 81 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | World of Greyhawk boxed set (1983) | 4 |
| Luna {Raenei} (Great Moon of Oerth) | Geographical feature | Moon, | World of Greyhawk boxed set (1983) | 19 |
| Nerull, Shrine of (Underoerth) | Building | Shrine, | Dungeon magazine #070 | 65 |
| Oerth Disc | Item | Artifact, | Dragon magazine #299 | 103 |
| Oerth Disc | Item | Artifact, | Dragon magazine #359 | 72 |
| Oerth Disc | Item | Artifact, | Greyhawk Adventures | 11 |
| Oerth Disc | Item | Artifact, | World of Greyhawk boxed set (1983) | 68 |
| Oerth Emporium | Building | Shop, | Dragon magazine #AN3 | 104 |
| Oerth Stone | Item | Artifact, | Dragon magazine #294 | 93 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | White Plume Mountain (Revised), D&D 3.5e | 33 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Sword and Fist | 48 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Sagard the Barbarian #1 The Ice Dragon | 175 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Spelljammer Boxed Set: Concordance of Arcane Space | 3, 54, 71, 78, 80, 86, 88, 91 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Spelljammer Boxed Set: Lorebook of the Void | 3, 6, 13, 65, 87, 89, 90 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Spelljammer Boxed Set: Planetary Display Map (Poster) | Poster |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | SJR6 Greyspace | 2, 3, 4, 6, 7-9, 10, 11, 14, 15, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 39, 40, 41, 43, 44, 48, 49, 50, 54, 55, 56, 60, 61, 63, 66, 67, 68, 71, 72, 73, 74, 75, 77, 78, 81, 83, 89, 90, 91, 92, Back Cover |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Slavers, AD&D 2e | 117, 120, 124, 128 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Sea of Death | 6, 14, 15, 16, 20, 21, 23, 25, 26, 27, 49, 50, 61, 63, 66, 76, 81-85, 91, 97, 128, 136, 237, 367, 393 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Saga of Old City | 6, 72, 168, 283, 341, 343, 351 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | T1-4 The Temple of Elemental Evil | 121 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The Adventure Begins | 1, 8, 9, 10, 12, 13, 14, 19, 21, 30, 45, 46, 58, 59, 61, 73, 87, 89, 104, 107, 114, 115, 120 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | LT3 The Doomgrinder | 2, 7, 39, 45 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The Tomb of Horrors—Greyhawk Classics Book 7 | 3 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The Scarlet Brotherhood | 2-4, 8, 13, 30, 36, 42, 61, 73, 75, 78-81, 83, 84 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | LT1 The Star Cairns | 5, 38, 39, 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Vecna Reborn | 2, 3, 50 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | War Captain's Companion Boxed Set: Book 1 | 4, 20, 21, 22, 23, 27, 28, 36, 38, 40 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WG12 Vale of the Mage | 15, 30, 34, 35, 36, 37, 48, 52 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WG5 Mordenkainen's Fantastic Adventure | 16, 25 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WG6 Isle of the Ape | 6 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WG8 Fate of Istus | 2, 10, 38, 104, 122 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGA1 Falcon's Revenge | 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGA2 Falconmaster | 9, 23 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGA4 Vecna Lives! | 7, 18, 22, 54, 56, 60, 65, 66, 68, 81, 83 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The World of Greyhawk Fantasy World Setting (Folio) | 2, 3 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGR1 Greyhawk Ruins | 2, 10, 14, 16, 55, 66, 67, 76, 84, 85, 86 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGR2 Treasures of Greyhawk | 15, 17, 37, 52, 74, 81, 84 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGR3 Rary the Traitor | 7, 33, 46, 51, 52, 55, 57, 59 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGR4 The Marklands | 12, 53, 55, 88 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGR5 Iuz the Evil | 3, 6, 22, 25, 58, 60 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGS1 Five Shall Be One | 4 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | WGS2 Howl From the North | 26, 42 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | World of Greyhawk boxed set (1983) | 1, 3, 4, 60, 62, 63, 71 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | World of Greyhawk boxed set (1983) | 2, 6, 18, 20, 35, 37, 41 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Artifact of Evil | 7, 31, 49, 91, 94, 95, 96, 103, 122, 193, 194, 197, 216, 217, 241, 310, 337, 340, 343 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Against The Giants: The Liberation of Geoff | 46, 49, 56 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Baldur's Gate: Descent Into Avernus, D&D 5e | 97 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Bastion of Faith | 4 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Come Endless Darkness | 8, 40, 41, 43, 47, 78, 240, 242, 244, 245, 247, 248, 361 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | CGR1 The Complete Spacefarer's Handbook | 5, 9, 10, 11, 12, 37, 53, 82, 86, 101 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The City of Greyhawk: Folks, Feuds and Factions | 21, 23, 25, 28, 30, 76, 92 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The City of Greyhawk: Gem of the Flanaess | 2, 24, 30, 94, 96 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | City of Hawks | 27, 56, 70, 260, 280, 288, 293, 298, 327, 344, 350, 355, 361, 364, 367, 389, 394 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | LT2 Crypt of Lyzandred the Mad | 2-6, 22, 32, 46, 47 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Into White Plume (RPGA) (High Level Version), D&D 3.5e | 4 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Curse of Strahd, D&D 5e | 39 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | College of Wizardry | 9 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dead Gods | 74, 75, 86 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | DMGR4 - Monster Mythology | 7, 8, 14, 109, 128 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | DMGR5 - Creative Campaigning | 32, 34 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dance of Demons | 18, 27, 33, 42, 43, 47, 48, 69, 77, 109, 139, 185, 218, 258, 284, 353, 383, 401, 405, 407, 411, 412, 418 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #001 | 28 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #065 | 11 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #067 | 25 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #068 | 42, 43, 44 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #071 | 22 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #086 | 30 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #089 | 21 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #092 | 6, 24 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #155 | 27 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #178 | 93 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #185 | 58, 62 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #188 | 28, 32 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #189 | 13 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #191 | 68 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #195 | 94 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #196 | 84 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #200 | 22 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #204 | 53 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #206 | 24, 25, 26, 27, 35, 41, 44, 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #208 | 49, 54 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #211 | 84 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #225 | 49, 50, 53 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #230 | 11 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #238 | 44, 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #241 | 40, 48, 50, 75, 95 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #242 | 49 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #245 | 72, 73 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #249 | 90 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #253 | 40, 41, 45, 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #256 | 45, 47 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #258 | 47 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #263 | 46, 48 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #264 | 47 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #268 | 70 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #270 | 72 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #271 | 77 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #290 | 5, 101, 102 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #291 | 90 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #294 | 30, 78, 89, 92, 93, 94, 95, 96, 97 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #295 | 20, 95 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #297 | 92 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #298 | 73, 84, 86 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #299 | 7, 96, 103 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #300 | 16 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #301 | 16, 86 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #306 | 96, 98, 99, 101 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #315 | 53 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #348 | 20, 24 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #350 | 19 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #351 | 26, 44, 45 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #354 | 23 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #356 | 38, 40 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #358 | 30, 31, 32 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #359 | 70, 71, 73, 75 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #AN1 | 72 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #AN3 | 20, 96, 100, 104 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dragon magazine #AN4 | 19 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #006 | 29 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #032 | 60 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #041 | 46 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #053 | 33 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #073 | 58 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #077 | 32, 36, 45, 56 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Dungeon magazine #114 | 44 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Encyclopedia Magica - Volume IV | 1346 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | The Fright At Tristor | 5 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | From the Ashes: Atlas of the Flanaess | 2, 9, 66-68, 80, 82, 89, 94, 96 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | From the Ashes: Campaign Book | 21, 74, 84 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Greyhawk Adventures | 3, 5, 11, 35, 36, 39, 40, 42, 45-48, 51, 89-93, 95-103 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | GDQ1-7 Queen of the Spiders | 4, 15, 73, 121 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Ghosts of Saltmarsh, D&D 5e | 4, 22, 26, 39, 65, 165 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Greyhawk Wars: Rule Book | 1 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Ivid the Undying | 7, 23, 40, 53, 74, 84, 86, 95, 104, 105, 110, 116, 133, 137, 143, 154, 157, 159 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | TSR Jam 1999 | 12, 13, 14 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | L3 Deep Dwarven Delve | 2 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk, Living Onnwal Gazetteer, D&D 3.5e | 5, 16, 62, 66, 99 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Gazetteer | 2, 3, 4, 7, 13, 14, 23, 43, 59, 62, 86, 127, 129, 148, 149, 160, 161, 162, 164, 166, 167, 168, 172, 175, 176, 181, 185, 186 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Journal #0 | 2, 4, 5, 6, 11 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Journal #1 | 1, 6, 7, 24 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Journal #2 | 1, 2, 16, 20 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Journal #3 | 3, 4, 12, 14, 16 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Living Greyhawk Journal #4 | 7, 16, 23 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Night Arrant | 68, 91, 114, 124, 264 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | On Hallowed Ground | 47, 165, 166, 167, 180 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Player's Guide to Greyhawk | 1-5, 8, 13-15, 18, 19, 21, 26, 27, 34, 39, 40, 47, 50 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | PHBR2 - The Complete Thief's Handbook | 83, 85 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | PHBR8 - The Complete Book of Elves | 26, 33 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Polyhedron magazine #058 | 17 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Polyhedron magazine #113 | 23, 24, 25 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Polyhedron magazine #128 | 28 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Polyhedron magazine #139 | 20 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Polyhedron magazine #163 | 107, 112 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Return of the Eight | 2, 3, 5, 10, 19-21, 48, 52, 54-56, 59 |
| Oerth {Oerthe, World of Greyhawk} | Geographical feature | Planet, | Return to White Plume Mountain | 3 |
| Oerthblood | Item | Artifact, | Dragon magazine #294 | 93 |
| Oerthblood | Item | Artifact, | Dragon magazine #351 | 45 |
| Oerthblood | Item | Artifact, | Oerth Journal #23 | 26,28 |
| Oerthblood | Item | Artifact, | Oerth Journal #24 | 52 |
| Oerthblood | Item | Artifact, | Oerth Journal #25 | 28 |
| Oerthblood | Item | Artifact, | Return of the Eight | 2, 33, 47, 48 |
| Oerthly Plates | Item | Artifact, | Dragon magazine #294 | 94 |
| Oerthly Plates | Item | Artifact, | Dragon magazine #299 | 103 |
| Oerthmagic | Kingdom | Magical Force, | Living Greyhawk Gazetteer | 34 |
| Oerthmagik by Nazralte G.C. | Item | Book, | Dragon magazine #200 | 39, 41 |
| Oerthmagik by Nazralte G.C. | Item | Book, | Reference | SEE ALSO Book of Naz, The |
| Pitchy Flow (Underoerth) | Geographical feature | Waterway, | D1-2 Descent into the Depths of the Earth | 17 |
| Pitchy Flow (Underoerth) | Geographical feature | Waterway, | D3 Vault of the Drow (adventure) | 8, 15, 18, 22 |
| Pitchy Flow (Underoerth) | Geographical feature | Waterway, | Dragon magazine #298 | 73, 74 |
| Pitchy Flow (Underoerth) | Geographical feature | Waterway, | GDQ1-7 Queen of the Spiders | 65, 73, 81, 84, 88, 125 |
| Raenei {Luna} (Great Moon of Oerth) | Geographical feature | Reference | SEE Luna {Raenei} (Great Moon of Oerth) | |
| River of the Dead (Underoerth) | Geographical feature | Waterway, | Dungeon magazine #085 | 49, 58 |
| Scarlet Lake (Underoerth) | Geographical feature | Lake, | Dungeon magazine #085 | 40 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | D1 Descent into the Depths of the Earth | IBC |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | D1-2 Descent into the Depths of the Earth | 14 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | D2 Shrine of the Kuo-Toa | IBC |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | D3 Vault of the Drow (adventure) | IBC, 22 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | Dragon magazine #209 | 13 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | Dragon magazine #285 | 66 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | Dungeon magazine #070 | 51, 52, 62, 65, 66, 72 |
| Sunless Sea (Underoerth) | Geographical feature | Sea, | GDQ1-7 Queen of the Spiders | 88 |
| Svartjet River (Underoerth) | Geographical feature | River, | D1-2 Descent into the Depths of the Earth | 14, 17 |
| Svartjet River (Underoerth) | Geographical feature | River, | D2 Shrine of the Kuo-Toa | 6 |
| Svartjet River (Underoerth) | Geographical feature | River, | D3 Vault of the Drow (adventure) | 22 |
| Svartjet River (Underoerth) | Geographical feature | River, | Dragon magazine #298 | 71 |
| Svartjet River (Underoerth) | Geographical feature | River, | Dungeon magazine #070 | 62 |
| Svartjet River (Underoerth) | Geographical feature | River, | GDQ1-7 Queen of the Spiders | 62, 64, 88, 125 |
| Tharizdun, Temple of (Underoerth) | Building | Temple, | Dungeon magazine #085 | 43, 44 |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #11 | 14,16,21,22,62,69 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #12 | 9 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #14 | 37,38,45 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #19 | 42 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #22 | 12,46,56 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #23 | 35 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #26 | 13 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #27 | 24 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #30 | 5 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #31 | 7 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #32 | 11,47 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Player's Guide to Greyhawk | 7, 39 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Return of the Eight | 60 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Return to the Temple of Elemental Evil, D&D 3.0e | 41, 50, 96 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Return to White Plume Mountain | 48, 49 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | S4 The Lost Caverns of Tsojcanth, Book Two | 10 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Spelljammer Boxed Set: Lorebook of the Void | 90 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Slavers, AD&D 2e | 27, 121, 123 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Sea of Death | 256 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | The Adventure Begins | 38 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | LT3 The Doomgrinder | 2, 14, 33 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | The Scarlet Brotherhood | 25, 54 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | LT1 The Star Cairns | 29 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | WGA3 Flames of the Falcon | 47, 59, 60 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | WGA4 Vecna Lives! | 39 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | WGR1 Greyhawk Ruins | 14 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | WGR3 Rary the Traitor | 17, 25, 29, 34, 35, 40, 42, 45 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | WGR5 Iuz the Evil | 50, 91 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Against The Giants: The Liberation of Geoff | 2, 23, 42 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Bastion of Faith | 10 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | The City of Greyhawk: Adventure Cards | 3 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | The City of Greyhawk: Folks, Feuds and Factions | 52 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | The City of Greyhawk: Gem of the Flanaess | 27, 30 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | LT2 Crypt of Lyzandred the Mad | 46 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #208 | 54 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #241 | 39, 43 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #276 | 84 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #285 | 72 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #293 | 90 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #294 | 96 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #298 | 71, 73, 85 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #351 | 43, 45 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #AN3 | 100 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dragon magazine #AN4 | 70 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dungeon magazine #070 | 48, 50, 51, 52, 54, 58, 59, 61, 62, 67, 76, 78 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dungeon magazine #085 | 35, 38, 39, 40, 41, 42, 43, 48, 52 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Dungeon magazine #089 | 47 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | From the Ashes: Atlas of the Flanaess | 7 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | From the Ashes: Campaign Book | 25, 27 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Ghosts of Saltmarsh, D&D 5e | 14, 207, 216 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | IQ3 Warriors of the Gray Queen | 5 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Ivid the Undying | 73, 100, 139 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | TSR Jam 1999 | 27 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Living Greyhawk, Living Onnwal Gazetteer, D&D 3.5e | 40, 102 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Living Greyhawk Gazetteer | 18, 143, 170 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Living Greyhawk Journal #2 | 24 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #02 | 2 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #04 | 5 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #05 | 14 | |
| UnderOerth {Underdark, Sunless Realm, Under-Oerth} | Region | Oerth Journal #06 | 11 | |
| World of Greyhawk {Oerth} | Geographical feature | Reference | SEE Oerth |