2017 Map of Potato Lakes

About this map

The John Long Mountains rise above the Philipsburg Valley in this Granite County landscape, where high-country hydrology dictates the movement of water through the Deerlodge National Forest. The namesake Potato Lakes sit at the head of Middle Fork Rock Creek, part of a complex drainage network that includes Spring Creek and the Flint Creek Canal. This modern survey illustrates the intersection of wilderness and infrastructure, with the long sweep of Skalkaho Rd carving through Corral Gulch and across the western slopes. Toward the southeast, the E Fork Reservoir and numerous small gulches like Dearborn Gulch and Dry Gulch reveal the localized topography of the region's ranching and forestry history.