Lor'Tan was the largest city on the planet Andoria and served as the center for the Andorian's cultural, economic and political life. All of the planet's highlights including cultural institutions, restaurants and museums were all based in this city. In addition, Andoria's largest commercial bodies and industrial organizations were also stationed in Lor'Tan.

Notable locations in the settlement included the Atlin Zoological Park and the Lor'Tan Great Hall. (Decipher RPG module: Worlds)

The planet Andor
cities and settlements	Aenar compound • Harbortown • Laibok • Laikan (Tumulus District) • Lor'Tan • Lor'Vela • Shess • Tarsk • Wethesa • Neshilev Settlement Project
landmarks and institutions	Andorian Academy • Atlin Zoological Park • Grand Staircase • Interstellar Headquarters • Interstellar Institute • Laikan Military Academy • New Therin Park • Therin Park • Parliament Andoria • Tower Hill • Wall of Heroes
nations and provinces	Shelneth Province • Thelasa-vei province
geography	Cheshras Islands • Eastern Archipelago • Northern Wastes • Vezhdar Plain • Weyzhiss Mountains
continents and landmasses	Kathela (Agrara • Bevassa Mountains • Bo'ab • Dhara Region • Enessi Mountains • Gatha • InikYoyla • Irinari • Kathela • Kul'san • Ler'nelsh Village • Li'Mi'sha • Lor'Tan • Lor'vela • L'uvan • Mar'it • Ohehtloo • Onshoma • Tarsk • Tharon Mountains • Uskit) • Issa • Tlanek • Voral (Barva • Clorisev • Davis Starport • Dira • Doshna Coliseum • Dreshna • Endas Mountains • Ivari Launch Site • Jonava Mountains • Kal'Tan • La'Len's Trail • New Sheras • Sheras • Tarda Mountains • Trathen Ridge • Ukalno Field)
bodies of water	Anshim Ocean • Bo'ab • Central Canal • Emarni Lake • Frost River • Khyzhon Sea • La'Len Ocean • La'Vor Sea • Lake Thalassa • Lor'Tan Strait • Mar'it • Moss River • Smathl Lake • Lake Thalassa
lifeforms	alicorne • Andorian (Aenar • Talish • Thalassan) • amoeba • bull • redbat • tuber root • atlirith • ice-bore • stinging centipede • Zabathu