Swasey mares being released back onto the range after being treated with PZP-22,  a two-year contraceptive. Photo by Lisa Reid.

Swasey Mountains HMA

The original source of the animals is unknown. However, many of the horses in the Swasey Herd are descendents of horses that were turned loose or escaped from local ranches. The Swasey Herd is dominated by gray and light colored horses. Other colors include black, brown, bays, buckskins, and pintos. The average size of herd adults is 14 to 14 1/2 hands. The BLM management goal for this herd is to maintain a herd size between 60 and 100 head.

Location: The Swasey Mountains Herd Management Area (HMA) is located in the Swasey Mountains in north-central Millard County, approximately 30 miles west of Delta.

Size: 134,965 acres

Topography/Vegetation: The vegetation on the upper elevation of the Swasey Mountains is comprised of mountain brush and aspen groves. The foothill region is predominantly vegetated with shadscale and ricegrass.

Wildlife:

AML:  60-100

Viewing Opportunities:  Travel west from Delta on U.S. Highway 50 & 6 approximately 30 miles to the signed turnoff to Antelope Spring and Long Ridge Reservoir. Turn north and travel approximately 13 miles to an intersection with a large fenced pond south of the road. Horses may be viewed watering at this pond early or late in the day during the summer. Turn east at intersection towards Swasey Spring. Travel east, then north approximately 13 miles to the signed turnoff to Swasey Spring. Horses may be seen in the foothills and canyons along the east side of the Swasey Mountains.

Center Content: 

Swasey mares being released back onto the range after being treated with PZP-22,  a two-year contraceptive. Photo by Lisa Reid