“A common reason to set up a more permanent base on a strange, new world is for its resources. Many discovered planets have vital and essential natural resources such as dilithium or pergium, as well as precious minerals and metals. However, it is not uncommon for such mining ventures to be at the heart of a political dispute, in dangerous territory, or for the mining itself to uncover a strange and hostile life-form intent on protecting its habitat.” [Star Trek Adventures Core Rulebook p. 209]
There is plenty of information at Memory Alpha about mining in the Star Trek Universe. You may need stats to bring one into your Star Trek Adventures game. Well, we at Continuing Mission live to serve. So, here it goes.
Need a game involving a mining colony? Check out this Mission Brief, a short one-page adventure outline for a mining-centric adventure.
Map of Mines if you need it.