About the Augusta Mountains HMA
The Augusta Mountains HMA comprises 182,883 acres of public and other land. The HMA is located in Churchill, Lander and Pershing Counties, about 75 miles southeast from Winnemucca, Nevada.
The HMA is managed for an Appropriate Management Level (AML) range for wild horses of 185-308. The AML was established in the Cottonwood (Battle Mountain District Office) Final Multiple Use Decision (FMUD) August 1994, Hole-In-The-Wall FMUD January 1997, Home Station Gap FMUD January 1997, and the Jersey Valley FMUD January 1997. AML is established following an in-depth analysis of habitat suitability utilizing resource monitoring and population inventory data, with public involvement. The upper limit of the AML is the maximum number of wild horses that can graze in a thriving natural ecological balance and multiple use relationship on the public lands in the area. Establishing AML as a population range allows for the periodic removal of excess animals (to the low range) and subsequent population growth (to the high range) between removals.
The current estimated population of wild horses is 294 within the HMA boundary and 50 residing outside of the HMA boundary. This number is based on an aerial survey using the direct count population inventory method conducted in April 2009 of 237 wild horses and includes the addition of the 2010 foal crop. These data indicate wild horse numbers have increased an average of 20 to 24 % per year since the HMA was last gathered, which is the ratio of foals to adults during the last two gathers.
For a copy of the Environmental Assessment (EA) for the Augusta Mountains HMA Wild Horse Gather Plan see www.blm.gov/nv/st/en/fo/wfo/blm_information/nepa0/wild_horse_and_burro/Augusta.html.