|Peak||East Pryor Mountain| |Elevation||8,776 ft (2,675 m)|
|Native name||Baahpuuo Isawaxaawuua ("Hitting Rock Mountains")|
The Pryor Mountains  are a mountain range in Carbon and Big Horn
counties of Montana. They are located on the Crow Indian
Reservation and the Custer National Forest, and portions of them
are on private land. They lie south of Billings, Montana, and
north of Lovell, Wyoming. The mountains are named for Sergeant
Nathaniel Hale Pryor, a member of the Lewis and Clark Expedition
who vainly pursued horses stolen from the expedition in the
area. The Crow Nation, a Native American tribe which lived
nearby, called the mountains Baahpuuo Isawaxaawuua ("Hitting
Rock Mountains") because of the abundance of flint there (which
was chipped into arrowheads). The Pryor Mountains are a
145,000-square-mile (380,000 km2) region of Montana and Wyoming.
The Pryor Mountains consists of Paleozoic, Mesozoic and Cenozoic
sedimentary rocks the most prominent unit is limestone (known as
the Madison Group limestone)