2024 Map of Half Moon Canyon

About this map

The Big Snowy Mountains dominate this central Montana landscape, where the high ridges of the Lewis & Clark National Forest meet the grazing lands of Fergus and Golden Valley counties. This terrain is defined by dramatic vertical relief, reaching its zenith at peaks like Greathouse Peak and the aptly named Old Baldy. The map reveals a complex network of drainage and transport dictated by the limestone geology, from the headwaters of Swimming Woman Creek in the south to the deeply incised Half Moon Canyon that cuts through the heart of the range. Footpaths and forest roads provide the primary access to this high country, with the Uhlhorn Trl and Maynard Ridge Trl tracing the narrow spines between canyons. The presence of Rogers Spring and various benchlands like Bowmans Bench suggest the vital role of water management in this high-altitude environment, while the proximity of the Halfmoon Ranch Rd points to the long-standing ranching traditions that border these protected forest lands.