District 580, Montana

The district spans from high alpine summits — Crazy Peak tops out at 11,209 feet — down through steep timbered drainages and broken foothill terrain to sagebrush-grassland prairie along the Yellowstone and Musselshell River bottoms near 4,000 feet elevation. The east and north slopes are notably steeper; FWP management records note that approximately 80% of the public-land area has slopes at or below 28 degrees, with the remaining steep terrain limiting road-based access to elk habitat.

Historically HD 580 had only three legally uncontested public access points to national forest land on the north and east slopes of the Crazies per the FWP Crazy Mountains EMU plan: (1) Big Timber Canyon Road (USFS FR 197) in the southeast corner, terminating at Half Moon Campground trailhead off US 191 north of Big Timber; (2) Cottonwood Creek/Forest Lake Road (USFS FR 198) on the north end near Clyde Park; and (3) Sixteenmile Creek in the northwest corner near Ringling on US 89. In January 2025 the USFS authorized a controversial land exchange transferring 3,855 acres of federal land to private ownership in exchange for 6,110 acres of private land (net +2,255 acres public). The exchange is intended to establish perpetual legal public access between Big Timber Creek and Sweet Grass Creek and fund a new 22-mile trail replacing the disputed East Trunk Trail (Trail 136), though construction had not yet begun as of early 2026. The primary boundary highways are US 89 (west), SR 294 and US 12 (north), US 191 (east), and the Yellowstone River (south). Approximately 78% of HD 580 is private land, 16% USFS (Custer Gallatin NF in the south, Helena-Lewis and Clark NF in the north), 5% state DNRC, and under 1% BLM within the EMU boundary. Well-documented access disputes exist — Sweet Grass drainage landowners have historically blocked entry during hunting season; the Sweet Grass Ranch and Rein Anchor Ranch control former historic trailheads. New Block Management Area parcels in the Crazy Mountains foothills and Shields Valley opened for 2026, including an approximately 1,800-acre Anderson Creek parcel in Meagher County.

Subalpine zone: fir-spruce forest transitioning to alpine meadows and exposed rock above treeline. Mid-elevation: lodgepole pine and Douglas-fir drainages providing primary elk habitat on national forest lands. Foothill zone: ponderosa pine and juniper on broken terrain. Lowland/riparian corridors along Big Timber Creek, Sweet Grass Creek, Sixteenmile Creek, and the Yellowstone River support cottonwood-willow bottoms and irrigated hay meadows that function as critical elk winter range (private lands provide the majority of available winter range). Chokecherry thickets in river bottoms attract black bear in early fall.

Elk: The Crazy Mountains EMU (HD 315 + HD 580 combined) recorded a post-season count of 3,315 elk in the 2025 FWP survey (3-year average 2,917), well above the combined EMU objective of 1,200–2,000; status is 'Above Objective.' The 2024 count was 2,918 (3-yr avg 2,646), also above objective. Elk concentrate on national forest lands in spring, summer, and fall, then winter almost entirely on private hay meadows and foothill sagebrush-grassland. Bulls use higher, more secure drainages. Mule deer are present throughout but populations have trended toward multi-decade lows in recent surveys; they occupy creek drainages, foothill breaks, and prairie edges. White-tailed deer concentrate along creek bottoms, Yellowstone River, and Musselshell River riparian corridors. Black bear numbers have been increasing along river bottom corridors, drawn to chokecherry stands in early fall. Mountain lion are present. Mountain goats are present in the high alpine zone above timberline. Wolverine have been documented in the Crazy Mountains. Pronghorn occur on the prairie fringes of the eastern portion of the district. Moose are documented in the area.

1. Public land percentage (22%) and EMU area apply to the full Crazy Mountains EMU (HDs 315+580 combined), not exclusively HD 580 alone. 2. The 2025 FWP elk count PDF confirms the Crazy Mountains EMU post-season count was 3,315 (2025 survey), 3-year average 2,917, objective 1,200–2,000, status Above. The draft's 2021 figure of 4,215 and combined objective of 1,975 were outdated; the correct current objective range is 1,200–2,000 combined. 3. The approximately 25-tag quota for the permit-only south zone (HD 580-21) comes from forum sources (HuntTalk), not an official FWP document — treat as approximate. 4. The January 2025 USFS land exchange authorization is a material access development; trail construction timeline was unconfirmed as of early 2026. 5. Mountain goat archery season date corrected to Sep 6–14 (not Sep 5) per FWP website. 6. Specific B-license codes, current-year antlerless quotas, and draw statistics for deer/elk/pronghorn should be confirmed in the current regulations or at fwp.mt.gov hunt planner. 7. The AI search-generated claim of 6,267 elk for HD 580 in 2025 was a hallucination and was discarded; official 2025 count PDF was used instead.