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The BLM is a federal government agency that manages over 248.2 million surface acres of public lands and 700 million acres of subsurface, or mineral, estate in the United States.

The Bureau of Land Management (BLM) is a federal agency under the U.S. Department of Interior responsible for managing 248.2 million acres of public lands in the United States, mostly located in western states. The agency is also responsible for managing 700 million acres of subsurface mineral estate located beneath federal, tribal, state, and private lands (see Split Estate).

BLM’s land use programs include: grazing management, mining, coal/oil/gas leasing, recreation, forestry, and the National Conservation Lands.

In Colorado the BLM manages:

  • 2 National Monuments
  • 3 National Conservation Areas
  • 5 Wilderness Areas
  • 54 Wilderness Study Areas
  • 1 National Historic Trail
  • 1 National Scenic Trail

In New Mexico the BLM manages:

  • 2 National Monuments
  • 2 National Conservation Areas
  • 5 Wilderness Areas
  • 58 Wilderness Study Areas
  • 2 National Historic Trail
  • 1 National Scenic Trail
  • 2 Wild and Scenic Rivers


(See below for contact information)

“The BLM’s mission is to sustain the health, diversity, and productivity of America’s public lands for the use and enjoyment of present and future generations.”


The BLM Farmington Field Office manages over 1.5 million surface acres and 3 million subsurface acres in northwest New Mexico. The office also manages the Alien Run Trail, Angel Peak Scenic Area, Bisti/De-Na-Zin Wilderness, Dunes Vehicle and Glade Run Recreation Areas, Simon Canyon Area of Critical Environmental Concern, and Crow Canyon Petroglyphs.

Contact your local office: 

Farmington Field Office
Bureau of Land Management
6251 College Blvd. Suite A
Farmington, NM 87402

Phone: (800) 842-3127



The BLM Tres Rios Field Office manages over 664,000 acres of public lands and over 1 million subsurface acres in southwest Colorado. The office also manages the Anasazi Heritage Center, Canyon of the Ancients National Monument, the McPhee Reservoir, the San Juan Skyway, and the Alpine Loop Backcountry Byway.

Contact your local office: 

Tres Rios Field Office
Bureau of Land Management
29211 Highway 184
Dolores, CO 81323

Phone: (970) 882-7296



The BLM Gunnison Field Office manages over 600,000 acres of public land in the upper Gunnison River Basin of southwest Colorado. The office also manages the Hartman Rocks, Cochetopa Canyon, Powderhorn Wilderness, and the Alpine Triangle.

Contact your local office: 

Gunnison Field Office
Bureau of Land Management
210 W. Spencer Street
Gunnison, CO 81230

Phone: (970) 642-4940



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