HD 319 covers the rolling country between Three Forks and Townsend along the upper Missouri—sage benches, dryland breaks, and timbered foothills rising west of US-287 toward the south end of the Big Belt and Elkhorn ranges. Elevations span 3,800 feet on the Missouri at Toston up to about 8,000 feet on the higher foothill ridges. The valley floor is irrigated hay along the river, native bunchgrass and sage on the benches, with cottonwood gallery forest in the bottoms. Climb the foothills and you hit open Douglas fir and limber pine parkland on the dry south aspects, denser lodgepole and mixed conifer in the upper drainages. Mule deer use the timbered breaks and rocky benches; pronghorn work the open sage; whitetail in the river bottoms; some elk filter down out of the Elkhorn-flank country to the west. Old mining cabins and abandoned ranches dot the country—it's been worked over for 150 years. BLM, DNRC state sections, and significant private ranch ground. The BLM tracts here are real—the agency manages a fair amount of public ground in the Toston-Three Forks corridor and most of it is walk-in. US-287 is the paved spine, with county and BLM roads gridding the back country. Townsend is the local supply town—gas, a grocery, a couple of cafes, a county courthouse. Three Forks is south. Cell service holds on the highway and gets thin on the BLM grids. Block Management opens up access on a meaningful share of the ranch ground. This unit doesn't have the magazine reputation of the surrounding country, which is exactly why it can produce a quiet, productive mule deer or pronghorn hunt for a hunter willing to walk BLM tracts most road-hunters skip.