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Most horses are solid in color, but a noticeable number of pintos are present.
Location: Green Mountain Herd Management Area (HMA) encompasses nearly 117,000 acres, SSE of Sweetwater Station, of which nearly 75,000 acres are BLM-administered public lands.
Size: Nearly 117,000 acres.
Topography/Vegetation: Topography within the herd area is generally gently rolling hills and slopes north and south of Green Mountain. Green Mountain itself is quite steep with mountainous terrain and conifer/aspen forests. Elevations range from 6,200 to 9,200 feet with grand vistas of the Red Desert, Sweetwater Rocks, and Oregon Trail from the higher elevations. Precipitation ranges from 10-14 inches at the lower elevations to 15-20 inches at the upper elevations. Most of the precipitation is in the form of snow. Vegetation around the mountain is dominated by various sage, grass, woodland and riparian species. The Green Mountain portion of the HMA is characterized by lodge pole forests breaking to a juniper/limber pine vegetative type. Much of the mountain itself is steep and rugged. Wild horses tend to spend their time on top of the mountain during the summer and fall months.
Wildlife: The area supports significant wildlife populations of elk, deer, pronghorn, bighorn sheep and moose.