2020 Map of Lower Seymour Lake

About this map

Lower Seymour Lake and the high-altitude drainage systems of the Anaconda Range define this terrain at the border of Beaverhead National Forest and Deerlodge National Forest. The landscape is dominated by the headwaters of numerous creeks, including Seymour Creek and La Marche Creek, which feed eventually toward the Big Hole River in the southern portion of the quadrangle. A notable human imprint on this wilderness is the Bacon Ditch, an irrigation or mining-era water conveyance cutting across the slopes north of the river. The Continental Divide National Scenic Trail traverses the ridges, providing a modern point of reference through a region historically valued for its timber and watershed. Surveyed access is limited to a handful of forest routes like Seymour Creek Rd and Fish Trap Rd, which trace the narrow valley floors.