District 621, Montana

The Missouri River Breaks terrain is sharply defined by deeply incised canyons, coulees, and badlands bluffs where the benchlands of the Great Plains fall away toward the Missouri River. Elevation ranges from approximately 2,250 feet along the river bottom to around 5,708 feet on the higher prairie benchlands and ridge tops. Slopes can be extreme in the breaks proper; most of the landscape features slopes of 80% or less on the upland benches. The rugged canyon country limits motor vehicle access across much of the district, creating some of the most genuinely remote hunting terrain in eastern Montana.

Access is limited and largely roadless in the breaks proper. US Highway 191 runs generally north-south through or near the western portion of the district, connecting Malta (to the north) with the Zortman/Landusky area and providing the primary paved corridor. Dirt and two-track roads branch off onto BLM and CMR Refuge lands, but these become impassable when wet due to the notorious gumbo clay soils — hunters should exit to gravel or highway immediately if rain threatens. The CMR National Wildlife Refuge (1.1 million acres, managed by U.S. Fish and Wildlife Service) occupies much of the southern end of the district along the Missouri River and is open to hunting for elk, mule deer, pronghorn, bighorn sheep, mountain lion, upland birds, and waterfowl — but the Slippery Ann Elk Viewing Area within the refuge is closed to all hunting, and the UL Bend National Wildlife Refuge is also closed. River access by boat along the Missouri/Fort Peck Reservoir corridor provides an important alternative entry point early in the season. Elk hunters in HD 621 may also hunt islands in the Missouri River adjacent to where their elk permit is valid. Montana FWP Region 6 Block Management Program enrolls 208 BMAs covering approximately 1.48 million acres regionwide, including areas near Malta and south of US-191, providing hunter access across some otherwise private land within and adjacent to the district. The Havre FWP office (Region 6) administers the district. Nearest services are in Malta; the nearest gas stations can be hours away from parts of the unit.

Vegetation is driven by the semi-arid climate and sharp elevation transitions. Upland benches and plateaus are covered by sagebrush steppe and shortgrass/mixed-grass prairie. The canyon walls and draws support scattered ponderosa pine, Rocky Mountain juniper, and shrubby riparian growth. River-bottom and tributary drainages along the Missouri River, Cow Creek, and associated coulees hold cottonwood groves, willows, and riparian meadows that provide critical cover for white-tailed deer and wintering elk. The timbered and riparian portions in the deeper canyon breaks along the Missouri serve as the best security areas for elk.

Elk are present across most of the district but populations have declined significantly — 2024 post-season surveys found numbers approximately 56% below long-term averages and 41% below management objectives, triggering a 69% cut (550 licenses) in antlerless cow elk across HDs 620-621-622 combined. The late elk shoulder season was eliminated starting in 2024. The Missouri River and tributary riparian zones serve as critical water sources and summer/early-season holding areas; during drought, elk visit river edges almost daily. HD 621 retains somewhat better elk numbers than neighboring HDs 620 and 622 due to harder-to-access terrain. Bulls exceeding 320 inches are now considered excellent; 400-inch bulls are rare. Mule deer inhabit the entire district with populations at approximately 22% below long-term regional averages following multi-year drought and the severe 2022-23 winter; a buck-only season with no antlerless B licenses is in effect for HD 621 as of 2025. White-tailed deer are present but limited primarily to the Missouri River corridor, cottonwood bottoms, and tributary drainages. Pronghorn occur on the upland sagebrush benches and are huntable on the CMR Refuge; license quotas in adjacent districts have been increasing. Rocky Mountain bighorn sheep are present and huntable within the CMR Refuge system on limited permits. Mountain lions are present throughout the rugged canyon country, following deer and elk; mountain lion hunting is permitted on the CMR Refuge but note seasonal and quota restrictions. Gray wolves are present; wolf hunting is not listed as a permitted activity within the CMR NWR — confirm current season status with Montana FWP annually. Bear is not a huntable species on the CMR Refuge. The refuge also supports sage grouse, sharp-tailed grouse, pheasant, gray partridge, turkey, waterfowl, and doves.