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What would an atlas be without a gazetteer explaining all those place names? This somewhat experimental page reimplements the Geographic Index as an alphabetised gazetteer of the world of Mystara. With thousands of names to tackle, it will likely be a long time in the making. In the meantime, if you have any ideas or comments, please feel free to leave them below.
I
- Ice Flats (1)
- Icehop Island (4)
- Icena (2)
- Ice Peaks (4)
- Icereach Mountains (5)
- Ice Reach Range (2)
- Icereach Range (5)
- Icereach Range (White Range) (7)
- Icevale Elves (2)
- Icevale Mountains (2)
- Ice Wall (3)
- Icewatch Naval Base (1)
- Icewind River (3)
- Iciria (10)
- Idongor (2)
- Idris Tower (4)
- Idyll (2)
- Ierendi (48)Capital city of the Kingdom of Ierendi. First appeared in X1 (1981). The name was inherited from Moldvay and Schick’s Known World (c. 1976). Fully developed and mapped in GAZ4 (1987).
- Ierendi Island (3)
- Ietzirah (2)
- Igdor (1)
- Igoin (3)
- Igorov (1)
- Ilannir Peninsula (1)
- Ilarnn (1)
- Ilarnnian Autonomous Region (2)
- Ilarya (1)
- Ilbarathis (1)
- Ilcarith (Raging River) (1)
- Ildarinos Bay (1)
- Ildarinos River (1)
- Ilha Preta (1)
- Ilhas Gémeas (3)
- Ilhas Gémeas (Twin Islands) (1)
- Ilioloosti (2)
- Illedu River (2)
- Illioloosti (1)
- Illith Peaks (3)
- Illtflod River (1)
- Illtskógur (1)
- Illusomnia (1)
- Iltarcarith (River of Sorrow) (1)
- Ilyakana (2)
- Ilyana’s Keep (1)
- Ilya Pixie Village (2)A small village on the Island of Lost Dreams, in the Lake of Lost Dreams, in eastern Karameikos. First appeared in B10 (1986).
- Ilyoris (3)
- Imaroth (2)
- Immolation (3)
- Immortal Claws (2)
- Immortal’s Home (1)
- Imorian’s Bay (1)
- Impasto Woods (3)
- Imperial Domain (3)
- Imperial Necropolis (1)
- Imperial Territories (8)
- Imperial Territory of Altenia (3)
- Imperial Territory of Tarsia (5)
- Imperial Waters (1)
- Incarith (Cursed River) (1)
- Ingelhad (2)
- Inithandur (Cursed Forest) (1)
- Inithilmar (Cursed Lake) (1)
- Inkwell (1)
- Inlashar (1)
- Inner Planes (4)
- Inner Sea (1)
- Innuendo River (1)
- Insect Island (9)
- Intaglio Hills (3)
- Intricata (1)
- Inun (1)
- Involuteth (1)
- Inxi (2)
- Ios (1)
- Irdzhygrad (1)
- Iridium (2)
- Irisa (3)
- Irixumá (1)
- Iron (5)
- Iron & Tin (1)
- Ironclad Policy Bay (1)
- Iron Decree River (1)
- Iron Mine (3)
- Iron Woods (1)
- IronWoods (1)
- Isar River (3)
- Ishmar (2)
- Ishme (2)
- Ishtur-Koth (1)
- Isiliath (1)
- Isla del Cayo (1)
- Island of Amora (2)
- Island of Lost Dreams (4)
- Island of Mositius (2)
- Island of Okta (1)
- Island of Spirits (1)
- Isle of Aasla (1)
- Isle of Baraga (1)
- Isle of Dawn (60)An island continent east of the Known World, with Alphatia to its northeast and the Alatians and Ochalea to the south and southwest. First appeared in part in Companion (1984), in full in Master (1985). Developed and mapped in M5 (1987), then further developed and fully mapped in Dawn of the Emperors (1989).
- Isle of Dread (32)An island in the Thanegioth Archipelago, in the Sea of Dread. First appeared in X1 (1981). Revised in X1 (1983).
- Isle of Ormis (2)
- Isle of Refuge (1)
- Isle of the Black Dragon (2)
- Isle of the Seawitch (1)
- Isles of Steam (4)
- Isles of Wig & Powder (2)
- Isnarch (1)
- Isoile River (3)
- Isoin (3)
- Isoður (1)
- Issarthyl (3)
- Issarthyte River (1)
- Issathyte River (1)
- Isselden (2)
- Itheldown Island (2)
- Ithuin (4)
- Itucuá (4)
- Itzacalco (1)
- Itzapalapan (1)
- Itämaa (1)
- Ixpiyacoc (1)
- Ixui-Biá (1)
- Iyacatzin (1)
- Izcikmir Highlands (1)
- Izkacoy (1)
- Izlibül (1)
- Izmira (7)
- Izonda (5)
- Izondian Deep (9)
- Izondian Desert (3)
- Izondian Wall (2)
- Izumal (1)