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Mineral Materials

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 constructin aggregate and decorative rock, this is a typical northern California volcanic cinders mining operation.
Used for construction aggregate and decorative rock, this is a typical northern California volcanic cinders mining operation

Minerals and Mining

Mining Claims Quick Links

Solid Leasable Minerals

Mineral Materials

Mining Claim Filing Instructions 

Mining Claims and Mill Sites

Mining Law - Surface Management 

Mining Claim Patent Information

Mining Claim and Sites Brochure 


Leasing at Searles Lake 

Brochure cover:  How to obtain mineral materials from BLM-administered federal landsHow to Obtain Mineral Materials from BLM-administered Federal Lands (pdf)

Mineral Materials 
Quick Facts:

150 active mineral sale contracts

$40 million contract value

1.2 million tons of aggregate for infrastructure needs