2024 Map of Bayhorse Lake

About this map

Challis National Forest dominates this high-elevation landscape in Custer County, where the terrain rises toward Mill Creek Summit in the northwest. The drainage patterns on this map define the local geography, with Mill Creek and Park Creek flowing through the northern tiers, while Trail Creek and its many tributaries, such as Trealor Creek and Lavine Creek, carve through the southern sections. A network of primitive roads and trails, including the Mill Creek Rd and the Bayhorse Creek Rd, provides the primary access to this backcountry.