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State Herd Area: Twin Peaks HMA, California

In 1971, wild horses and burros were found roaming across 53.8 million acres of Herd Areas (HAs), of which 42.4 million acres were under the Bureau of Land Management’s (BLM’s) jurisdiction. Today the BLM manages wild horses and burros in subsets of these HAs, known as Herd Management Areas (HMAs) that comprise 31.6 million acres, of which 26.9 million acres are under BLM management. 

LOCATION:   The Twin Peaks HMA is located approximately 25 miles northeast of Susanville, CA.   Highway 395 borders the HMA to the west. It is on the Nevada/California border and is administered by the California BLM.  The HMA is located in both Lassen County, CA and Washoe County, NV.  

ACREAGE:   798,000 acres are managed for wild horses and wild burros  

ELEVATION:   4,000 feet to 7,500 feet  

TOPOGRAPHY/VEGETATION:   The terrain in this HMA consists of large, flat valley bottoms bisected by steep mountains. Dominant vegetation includes sagebrush, bitterbrush, bluebunch, needlegrass and squirreltail.  

WILDLIFE:   Wildlife occurring in the area includes mule deer, quail, pronghorn antelope, and sage grouse.  

HERD SIZE:  448 to 758 head of horses and 72 to 116 head of burros                       

HORSE COLORS:      Mostly bay, sorrel, black, gray, with some Appaloosas, duns, and pintos

BURROS COLORS:    Mostly black and brown, with some grays

SIZE OF HORSES:      14-16 hands and 900-1100 pounds

SIZE OF BURROS:      11-12 hands and 400-600 pounds 

HISTORY:   Some of the original horses in this area descended from Spanish Stock.  Today the herd is descended from US Army Cavalry remounts released prior to and during World War I, and historic draft and riding ranching stock.  Burros likely originated from historic sheep operations in the area.  Because Twin Peaks HMA has both horses and burros, it also is one of the few HMAs that has occasional mules.

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