HD 650 covers the middle Tongue River drainage between Birney and the Northern Cheyenne Reservation boundary—the river corridor and surrounding sage-and-pine breaks country in southeast Montana. Elevations run from about 2,800 feet on the Tongue River bottom to 4,000 feet on the higher pine-covered ridges. The Tongue River bottom is cottonwood gallery forest, willow thickets, and irrigated hayland—a productive whitetail corridor. Above the river the country is sage-and-grass benches, dryland wheat where it can be plowed, scattered ponderosa-pine and juniper breaks in the deeper coulees, and sandstone outcrops. The Tongue River Reservoir sits south of the unit; the Northern Cheyenne Reservation borders on the west; the Crow Reservation can lap in on the south. Mule deer use the breaks; whitetail concentrate in the river bottom; pronghorn on the open prairie; some elk in the timbered breaks. The land-ownership puzzle is significant: portions overlap the Northern Cheyenne Reservation (tribal permits required for non-tribal hunters), with BLM tracts scattered, DNRC state sections, and private ranchland filling the rest. Read the FWP HD 650 maps and the reservation boundary very carefully. Block Management is essential for non-tribal private. MT-314 (Tongue River Road) is the principal paved access; secondary dirt routes handle the rest. Birney is barely a place; Lame Deer is on the reservation; Ashland is north; Miles City is the supply town for full services. Cell service is essentially gone. Roads gumbo when wet. Mule deer in the public breaks and whitetail in BMA bottoms are the practical opportunities for non-tribal hunters.