Starbase 13

Starbase 13 is a Federation starbase located on the edge of the Federation Phalanx, bordering the Klingon Empire. Starbase 13 is one of 30 outposts that operate in the Phalanx.

In 2264, the USS Enterprise (NCC-1701) visited Starbase 13 with the Warp-Speed Classic Vaudeville Company in an attempt to boost morale on the base. (TOS novel: Enterprise: The First Adventure).