CALLAGHAN HERD MANAGEMENT AREA, NV
The Callaghan Herd Management Area (HMA) is located approximately six miles north of Austin, Nevada, in Lander County. The area consists of 156,230 acres. The terrain across most of the former
Shoshone-Eureka planning area managed by the Battle Mountain Field Office is typical of the Great Basin region with steep north and south trending mountain ranges separated by large sweeping valley bottoms. Elevations range from 10,200 feet at Mt. Callaghan, to 6,500 feet in Grass Valley to the east of the mountains and the Reese River Valley to the west. The mountain range is dissected by several creeks and streams. The Callaghan HMA is 16 miles wide and 28 miles long, sharing its
northern boundary with the Bald Mountain HMA. It contains a portion of the north-south trending
Toiyabe Range. Temperatures range in excess of 100 degrees Fahrenheit in the summer to less than 20 degrees below zero in the winter. Precipitation is in short supply with an annual total of only 5 to 16 inches.
In addition to wild horses, the HMA is often utilized by domestic cattle and domestic sheep. Wildlife species occurring in the area include mule deer, sage grouse, chukar, coyotes, mountain
lions, bobcats, pronghorn antelope and numerous other small mammals, birds, and reptiles.
Vegetation types are distributed according to topography and elevation and the associated precipitation. Within the highest elevations, and subsequently the greatest precipitation, the vegetation consists primarily of pinyon pine and juniper trees, mountain mahogany and low sagebrush. The lower and drier elevations consist of saltbush, greasewood, sagebrush and a variety
of annual and perennial grasses and wildflowers. In some areas it can take 25 acres to support one horse for a month.
The animals previously captured in the Callaghan HMA were relatively large in size. Although most of the animals were bay and sorrel, some paint (pinto), buckskin, grulla (mouse color), dun
and Appaloosa horses were captured from the area. A few Curly horses were also captured.