District 123, Montana

Mountainous, dissected drainage terrain ranging from approximately 2,400 feet in the Thompson River and Clark Fork River valley bottoms to roughly 7,250 feet on high ridges and peaks such as Clark Mountain. The district spans approximately 244 square miles of steep drainages, timbered sidehills, subalpine ridges, and valley bottoms cut by the Thompson River and its tributaries.

The district is approximately 97% public land (96% USFS, 1% state) per HuntScore; GoHunt reports 89.4% (methodology may differ). Managed primarily by the Lolo National Forest Plains/Thompson Falls Ranger District (406-826-3821), headquartered in Plains, MT. Highway 200 serves as the primary corridor along the Clark Fork River, with Thompson Falls as the nearest service hub. Numerous USFS logging and forest roads penetrate the Thompson River drainage and side drainages, providing road-based access to much of the district; however, some roads are subject to seasonal or year-round motorized closure under the Lolo NF Motor Vehicle Use Map. All motorized travel is restricted to designated routes. Trails (including USFS Trail 635, 398, and others referenced in legal boundary descriptions) provide access to backcountry areas. Some walk-in areas and gated roads closed to motorized vehicles exist within the district. A small amount of private land is interspersed, primarily in valley corridors. Late-season snow can severely limit road access. No designated wilderness area falls within this district, though the adjacent Cabinet Mountains Wilderness lies to the northwest in the Kootenai NF.

Vegetation transitions from riparian alder and brush in valley bottoms through dense mixed conifer (Douglas-fir, western larch, ponderosa pine) on mid-slopes to subalpine fir and spruce at higher elevations. Extensive clearcut units and fire-scarred areas provide early successional shrub and grass habitat important to deer and elk. Older-growth conifer stands persist in less-accessible drainages. Logging activity has historically shaped much of the mid-elevation forest structure.

Elk are present in moderate numbers with the district meeting bull-to-cow ratio objectives per aerial surveys conducted in spring 2023 and 2024. Calf recruitment was 48 calves per 100 cows in 2023 (among the highest in Region 1) and 32 calves per 100 cows in 2024, though total population count goals have not been met per December 2025 FWP commission documents, prompting conservative B-license antlerless quotas. Branch-antlered bull elk are present but described as difficult to locate. White-tailed deer populations are described as increasing, particularly in valley habitats. Mule deer are present but numbers have been declining and populations are geographically isolated. Mountain lion are confirmed present with a quota-based hunting season; HuntScore rates trophy potential at 91/100 for this unit. Black bear are present throughout the timbered landscape. Wolves are present in Region 1 and likely utilize this district. Bighorn sheep were NOT confirmed within the deer/elk HD 123 boundaries and are excluded from the species list.