New Vegas Colony was a colony.

In 2328, this was the point of embarkation for passengers traveling to Beta III, System C-111 via commercial transport. Naren Shankar traveled there on the SS Manoa, Brian Vogt traveled on the SS Kogin, and Dawn Velazquez and Art Cadron traveled on the SS Wisconsin. (TNG-R: "Inheritance", okudagram)

This colony was only mentioned in writing.