ShiKahr

From Memory Alpha, the free Star Trek reference

ShiKahr is a major city on Vulcan, located on the edge of Vulcan's Forge and ten days travel, on foot, from the L-langon Mountains. (TAS: "Yesteryear")

ShiKahr is the location of the ShiKahr Academy, where Tolaris taught prior to his becoming a V'tosh ka'tur. (ENT: "Fusion")

Future Starfleet officer and Federation Ambassador, Spock, was born in ShiKahr in 2232. (TAS: "Yesteryear")

A holoprogram available to crewmembers of the USS Enterprise-D featured a "Shi-Kar desert survival" on Vulcan. (TNG: "The Emissary")

The USS ShirKahr was named after the city. (DS9: "Tears of the Prophets")

[edit] Background

"ShiKahr," as it was spelled in the script for "Yesteryear" has also been spelled in the form of "Shi'Kahr", "ShirKahr", "Shirkar", and "Shi-Kar".

ShiKahr is seen in the remastered version of the "Amok Time" as it appeared in the animated episode "Yesteryear".

The script and production report for the Star Trek: Enterprise episode "The Forge" at StarTrek.com establish that the United Earth Embassy was in Shi'Kahr.