Budong mining colonies are settlements built into the corpses of dead budongs. The inhabitants are miners and their families, seeking to strike it rich by finding nogelti crystals in the bones of the budong. These colonies are incredibly dangerous -- the remnants of the budong digestive system are a constant threat to all colonists.
Peacekeepers have been known to use budong mining colonies as internment camps for prisoners.
A budong mining colony is the setting for one episode of Farscape.