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Rock Springs Field Office
Release Date: 06/14/11
Contacts: Serena Baker, 307-212-0197    

White Mountain/Little Colorado Wild Horse Gather Decision Released

The Bureau of Land Management Rock Springs Field Office has released the environmental assessment (EA), finding of no significant impact (FONSI), and decision record (DR) for a proposed gather to remove excess wild horses from the White Mountain/Little Colorado Herd Management Areas (HMA).

After the current foaling season, the population estimate in the White Mountain/Little Colorado HMAs is nearly 1,000 wild horses. As was established in the 1997 Green River Resource Management Plan (RMP), the appropriate management level (AML) for the White Mountain HMA is between 205-300 horses, and the AML range for Little Colorado HMA is 69-100. The AML is the point at which the herd’s population is consistent with the land’s capacity to support wild horses in balance with other public rangeland uses and resources.

The gather is necessary to maintain the wild horse herds within the established AMLs in compliance with the 1971 Wild Free-Roaming Horse and Burro Act and the 2003 Wyoming Consent Decree. The alternative selected in the EA is to manage both HMAs with non-reproducing herds. The two HMAs were last gathered in November 2007. The gather is scheduled to start in mid August 2011 and expected to conclude in early September.

Initial public scoping on the proposed gather was conducted in April-May 2010. The EA was made available for public comment in April-May 2011, and all comments concerning potential impacts were addressed in the EA. The DR is subject to administrative review through the appeal process, which is outlined in the Decision Record. A copy of the EA, FONSI, and DR are available at:

All gathered mustangs will be examined by a veterinarian, dewormed, Coggins tested and given booster shots. The wild horses will then be available for adoption to qualified applicants. Adoption applications and requirements for the White Mountain/Little Colorado gathered horses are available at:

For more information contact Wild Horse and Burro Specialist Jay D’Ewart, 307-352-0331.

The BLM manages more than 245 million acres of public land, the most of any Federal agency. This land, known as the National System of Public Lands, is primarily located in 12 Western states, including Alaska. The BLM also administers 700 million acres of sub-surface mineral estate throughout the nation. 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. In Fiscal Year 2015, the BLM generated $4.1 billion in receipts from activities occurring on public lands.

Rock Springs Field Office   280 Highway 191 North      Rock Springs, WY 82901  

Last updated: 06-14-2011