HD 590 encompasses the Pryor Mountains south of Billings—a small, isolated range straddling the Montana-Wyoming border that is best known for its wild horses but also holds huntable populations of mule deer, elk, and bighorn sheep. Elevations range from about 3,800 feet in the Pryor Creek drainage on the north side up to 8,822 feet on the summit plateau. The range is geologically unique—a tilted block of limestone and dolomite with a flat, forested top, steep cliffs on the north and east faces, and a gradual slope on the south and west sides. The lower slopes are sagebrush, juniper, and mountain mahogany. The mid-elevations carry Douglas fir, limber pine, and scattered ponderosa, while the top is a mix of subalpine forest and open meadows. Ice caves, karst features, and bighorn sheep habitat on the limestone cliffs make this a geologically and biologically fascinating place. The Pryor Mountains are managed by a patchwork of BLM, Custer National Forest, the Pryor Mountain Wild Horse Range, and the Crow Indian Reservation on the east side—tribal land is off-limits without a Crow permit. The BLM Wild Horse Range restricts some activities and access, so know the rules. Access from the north is via the Pryor Mountain Road south of Bridger; from the south, roads climb up from Warren and Crooked Creek in Wyoming. The roads are rough and the gumbo clay is impassable when wet. Billings is the nearest major service center. Bridger and Edgar are small towns with gas and basic supplies. Cell service is unreliable. This is not a high-volume hunting HD—it is a niche destination for hunters targeting Pryor Mountain bighorn sheep (extremely limited permits), mule deer in the juniper breaks, or a unique backcountry experience in an overlooked mountain range. The wild horses are a constant presence and add an element of the surreal when you're glassing for deer and a band of mustangs trots across your field of view. HD 590 (Pryor Mountains / south of Billings) is a niche destination — a small, isolated range best known for wild horses and bighorn sheep. General elk tags are available OTC for residents, but elk numbers are modest. Bighorn sheep permits are extremely limited (1-3 per year) and require maximum preference points. The BLM Wild Horse Range restricts some activities and access. The Crow Indian Reservation forms the east boundary — tribal land is off-limits without a Crow permit. Mule deer in the juniper breaks are the most realistic big-game opportunity. Block Management is limited due to the sparse private land. The gumbo clay roads are impassable when wet. The range is geologically unique — limestone karst features, ice caves, and tilted sedimentary formations unlike anything in the surrounding landscape. Bull-to-cow ratios for elk are not particularly notable given the small population. Billings is the nearest major service center. This HD is for hunters targeting a unique backcountry experience in an overlooked range, not for those seeking high elk density or easy access.