Map showing the location of Pryor Mountains Wild Horse Range

The Pryor Mountains Wild Horse Range is a refuge for a historically significant herd of free-roaming Mustangs, feral horses colloquially called "wild horses", located in the Pryor Mountains of Montana and Wyoming in the United States. The range has an area of 39,650 acres (160.5 km²)^[2] and was established in 1968 along the Montana–Wyoming border as the first protected refuge dedicated exclusively for Mustangs.^[3] It was the second feral horse refuge in the United States.^[4] About a quarter of the refuge lies within the Bighorn Canyon National Recreation Area.^[5] A group of federal agencies, led by the Bureau of Land Management, administers the range.^[6]

• http://en.wikipedia.org/wiki/Pryor Mountains Wild Horse Range