Bureau of Land Management - Abandoned Mine Land Program
The AML program has identified over 45,700 abandoned mine sites (as of 04/18/2014). BLM prioritizes and takes appropriate action on these historic abandoned mine sites using a risked-based approach. It is an enormous task that will take lots of time, money, and cooperation with other federal, state, and local partners. Meanwhile, the risks associated with abandoned mines remain and continue to increase because more and more remote areas are being developed or accessed for recreation. Even dangerous mines that have been properly sealed off are sometimes vandalized, entered, and left open. This can expose anyone nearby to unexpected, serious danger.