The Telsius Prime mining colony was a bolomite extraction facility on Telsius Prime. It has at least four levels, and uses pulse drills.
In 2376, Dala and Mobar, posing as Kathryn Janeway and Tuvok, conned the miners of the Telsius Prime mining colony out of 10 kilotons of bolomite. (VOY: "Live Fast and Prosper")