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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.
O
- Oakendale (6)First appeared in O2 (1985).
- Oakstaff (2)
- Oakstalk Woods (3)First appeared in GAZ13 (1990).
- Oakwall (8)First appeared in Wrath of the Immortals (1992).
- Oasis of Blood (1)First appeared in HWR2 (1991).
- Oasis of the Phoenix (1)First appeared in HWR2 (1991).
- Oathbreakers Woods (2)
- O Bastião das Tartarugas (3)Vilaverdan Colony. First appeared in Dragon 177 (1992).
- Obdaa (3)A village in the Marquisate of Azafeth, Frisland, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Obechek (3)First appeared in CM4 (1985).
- Oberbeck (1)First appeared in GAZ7 (1988).
- Ober’s Mimbur (8)A town in Highshire, one of the Five Shires. First appeared in GAZ8 (1988).
- Obscurata (3)A town in the See of Obscurata, Kingdom of Eadrin, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Obsidian Mine (3)First referenced in Champions of Mystara (1993).
- Oceania (15)An island northeast of Cestia. First appeared in Master (1985).
- Oceansend (26)First appeared in CM1 (1984).
- Oceansend Marshes (8)First mentioned in CM1 (1984). Never appeared on an official map.
- Ochalea (20)A large island south of the Isle of Dawn. First appeared in CM1 (1984); first named in Dawn of the Emperors (1989).
- Ocotepec (2)First appeared in Hollow World (1990).
- Octave (2)Kingdom of Haven, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Octoi (1)First appeared in PC3 (1990).
- Odar’s Caves (2)First appeared in TM2 (1989).
- Ode (2)Kingdom of Haven, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Odharjokull (6)A mountain peak in the Hardanger Mountain Range, in southwestern Soderfjord. Altitude 15,750 ft. First appeared in TM2 (1989).
- Odiyana (1)
- Odom (2)First appeared in Dragon 200 (1993).
- Oethrûn Plateau (2)First appeared in Dragon 200 (1993).
- Ofo (3)First appeared in Dragon 170 (1991).
- Ogamai (2)Ruins deep in Baalbeth Vale, nestled in the heart of the Frislandic Range. Nominally in the territory of the Duchy of Wyllareth, Frisland, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2013).
- Og Bay (1)First appeared in Dragon 161 (1990).
- Ogmna (3)First appeared in Dragon 177 (1992).
- O Grande Escarpamento (1)First appeared in Dragon 174 (1991).
- Ogreditch (2)First appeared in GAZ10 (1989).
- Ogremoor (9)A tribal nation of the Broken Lands. First appeared in GAZ10 (1989).
- Ogrepits Ridge (3)
- Ogresfell Keep (2)
- Ogres’ Trail (3)
- Ogre Tusk (2)
- Ohl-Bardâr (1)Lower Stoutfellow, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Ohlflod (1)Lower Stoutfellow, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Okadia (3)A town in the County of Orzafeth, Frisland, Empire of Alphatia. First appeared in Dawn of the Emperors (1989).
- Okstad (2)First appeared in TM2 (1989).
- Okwonga Lowlands (2)First appeared in Champions of Mystara (1993).
- Ol-ömoi (1)First appeared in Dragon 196 (1993).
- Oland (1)First appeared in GAZ7 (1988).
- Olarh (3)First appeared in Hollow World (1990).
- Olathis (4)First appeared in Geoff Gander’s Selhomarr (1997).
- Old Averoigne (2)The Province of Averoigne, a province of France in the other-dimensional world of Laterre. First appeared in X2 (1981).
- Old Boiler (1)First appeared in PC3 (1990).
- Old Caves (1)A cave complex in the hills near Threshold in the Grand Duchy of Karameikos. First mentioned, detailed and mapped in Basic (1983). Never appeared on an official geographic map.
- Old Denwarf-Hurgon (2)First appeared in Poor Wizard’s Almanac (1992).
- Old Docket River (2)
- Old Firemouth (3)First appeared in GAZ13 (1990).
- Old Fort (2)First appeared in Dragon 176 (1991).
- Old Kiln Mound (1)First appeared in PC3 (1990).
- Old Mill (3)An old mill on Fogor Isle in the town of Threshold, Grand Duchy of Karameikos. First appeared in Expert (1983). Further detailed in B10 (1986).
- Old Nenthead (2)Altitude 850 ft. First appeared in TM1 (1989).
- Old Orzafeth (2)A ruined city in the County of Orzafeth, Frisland, Empire of Alphatia. Created by Geoff Gander (1998). First appeared on a map in Bruce Heard’s Alphatia (2013).
- Old Pyramids (4)First appeared in Hollow World (1990).
- Oldsbury-Upon-Blythe (6)First appeared in Dragon 180 (1992).
- Old Tortles’ Egg-Laying Grounds (1)First appeared in Dragon 192 (1993).
- Olgar (3)
- Olgyerth (2)First appeared in Hollow World (1990).
- Ollinoico (1)First appeared in HWR1 (1991).
- Olmshavn (1)A village in southeastern Qeodhar. First appeared in the Mystaran Almanac AC 1018, in maps by Geoff Gander (2002).
- Oltania (1)
- Oltar Island (3)One of the Yannivey Islands. First appeared in Dawn of the Emperors (1989); named in Wrath of the Immortals (1992).
- Oltec Colonies (1)
- Oltec Hills (4)First appeared in Hollow World (1990).
- Olu (1)First appeared in Champions of Mystara (1993).
- Oluniya (1)First appeared in Champions of Mystara (1993).
- Olvasfjord (1)First appeared in GAZ7 (1988).
- Omechuiatzin (1)First appeared in HWR1 (1991).
- Omens’ Rock (3)A tower in the Seventh Ward, Kingdom of Arogansa, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Omepochtecatl (1)First appeared in HWR1 (1991).
- Omnipotenta (2)
- Omsh (2)First appeared in Dragon 185 (1992).
- Ongalithion (1)
- Onipede (1)First appeared in Champions of Mystara (1993).
- Oodnatta (2)First appeared in Dragon 186 (1992).
- Open Isle (9)First appeared in GAZ9 (1988).
- Oph-da (1)First appeared in HWR2 (1991).
- Opher (2)First appeared in Dragon 183 (1992).
- Opinicus Lake (3)Kingdom of Theranderol, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Oppland Hills (2)First appeared in TM2 (1989).
- Orbs-Vigil (2)First appeared in Bruce Heard’s Alphatia (2012).
- Orcditch River (2)First appeared in GAZ10 (1989).
- Orcus Dominicus (1)
- Orcus Rex (7)First appeared in GAZ10 (1989).
- Orc Village (6)First appeared in X9 (1985).
- Orc’s Chin Cape (3)First appeared in Dragon 196 (1993).
- Orc’s Head Island (2)First appeared in Dragon 196 (1993).
- Orc’s Head Peninsula (14)First appeared in X9 (1985).
- Orderlies Bridge (2)Kingdom of Theranderol, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Order of the Claw (3)
- Order of the Eye (2)
- Order of the Fang (2)
- Order of the Heart (3)
- Order of the Wing (3)
- Oreggiano (6)First appeared in GAZ3 (1987).
- Orfil (4)First appeared in Dawn of the Emperors (1989).
- The Organ Pipes (2)First appeared in GAZ13 (1990).
- Oriflame Lake (1)Kingdom of Vertiloch, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Orimul (3)
- Orl Bridge (2)Kingdom of Theranderol, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Orleth (2)
- Orlin Isle (2)First appeared in GAZ8 (1988).
- Orlsmouth (2)Kingdom of Theranderol, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Orminandur (1)The Cold Forest
- Ormincarith (1)Cold River
- Ormyr Tower (3)A tower in Stonewall, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Orol Island (3)First appeared in Hollow World (1990).
- Oroul Hills (1)
- Orvol (2)
- Orwick (3)Kingdom of Theranderol, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Orzetha (2)A tower in the Duchy of Wyllareth, Frisland, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2013).
- Orzif River (2)A river defining the southern border of the County of Västheim and the Marquisate of Azafeth, Frisland, Empire of Alphatia. 82 miles long. First appeared in Bruce Heard’s Alphatia (2013).
- Osahar (1)First appeared in Champions of Mystara (1993).
- Osayande (1)First appeared in Champions of Mystara (1993).
- Osh-Gobol River (2)First appeared in Dragon 200 (1993).
- Osknes (1)A village in Sognesholm in the Kingdom of Ostland. First referenced in GAZ7 (1988), where it was listed as the Great Hall of one of the clans, though it did not appear on the map. Later, Jacob Skytte (2002) placed it on his maps.
- Ostbergen (3)
- Ostbruck (6)First appeared in GAZ3 (1987).
- Osterslo Island (5)First appeared in GAZ7 (1988).
- Ostfold Scarp (7)First appeared in GAZ7 (1988).
- Ostland (34)Short form for the Kingdom of Ostland.
- Ostmanhaven (9)First appeared in GAZ7 (1988).
- Ostmanland (1)First appeared in GAZ7 (1988).
- Ostmark (3)A mountain range in Stoutfellow and Haven, Empire of Alphatia. First appeared in Dawn of the Emperors (1989); first named in Bruce Heard’s Alphatia (2012).
- Ostrav (2)
- Ostrita River (1)
- Ostzee (2)First appeared in Hollow World (1990).
- Oth Island (3)One of the Yannivey Islands. First appeared in Dawn of the Emperors (1989); named in Wrath of the Immortals (1992).
- Oth Lake (1)
- Othmar (3)First appeared in Dragon 178 (1992).
- Otofjord (5)First appeared in GAZ7 (1988).
- Otofjord River (4)First appeared in GAZ7 (1988).
- Otterland (1)First appeared in GAZ7 (1988).
- Oued Ashuma (2)First appeared in GAZ10 (1989).
- Outer Planes (5)First appeared in Companion (1984).
- Outer World (7)First appeared in Hollow World (1990).
- Overland Trade Route (6)First appeared in GAZ7 (1988).
- Owldive Tower (3)A tower in Lower Chimera District, Floating Ar, Empire of Alphatia. First appeared in Bruce Heard’s Alphatia (2012).
- Owl Tribe (1)First appeared in GAZ14 (1991).
- Oxhill (5)First appeared in GAZ3 (1987).
- Ozigbodi (1)First appeared in Champions of Mystara (1993).
- Oziloco (1)First appeared in HWR1 (1991).
- Ozomatlican (1)First appeared in HWR1 (1991).
- Ozungan Plateau (7)
- Ozurfold (1)First appeared in GAZ7 (1988).
- O’Connor’s Light (2)First appeared in TM2 (1989).
- O’Leahy Scarps (2)First appeared in TM2 (1989).