How was the database assembled?
The database is based largely on information contained in a Bureau of Land Management database called “Legacy Rehost 2000” or LR2000. This database contains the location and ownership of every mining claim on federal land in the Western U.S. including BLM land and Forest Service land. The database also includes the location and ownership of every mining plan and notice on BLM land in the Western U.S. It does not, however, contain any information about mining plans on Forest Service land in the Western U.S. Forest Service lands cover millions of acres and mining plans must be completed before a mine can operate. Therefore, it is often essential to know where a plan is located in order to find a mine. While we have attempted to include the location of mines on Forest Service lands from other sources, the absence of Forest Service plans in BLM’s database makes the listing of mines and plans on Forest Service land incomplete.
