The Bureau of Land Management (BLM) makes mineral materials located on public lands, such as sand, gravel, crushed stone, decorative stone, clay and pumice available for sale under the authority of the Materials Act of 1947. This law authorizes the BLM to sell these mineral materials at fair market value and to grant free-use permits to Government agencies and nonprofit organizations, so long as public land resources, the environment and the public are protected.
Mineral materials are among our most basic natural resources. In particular, sand, gravel, and crushed stone, also known as construction aggregate, extracted on BLM administered public lands are necessary for making ready-mixed concrete, asphalt, and many other building materials. By making locally available aggregate supplies available on public lands, BLM can help reduce consumer costs (fuel and energy costs), and reduce environmental impacts (air quality emissions and greenhouse gases).
Learn more about BLM California’s mineral materials program, and the quantity and value of the various mineral materials produced from BLM administered lands in California.
Used for construction aggregate and decorative rock, this is a typical northern California volcanic cinders mining operation