2022 Map of Groundhog Reservoir

About this map

Groundhog Reservoir serves as a central hydrological feature within this portion of the San Juan National Forest, where a complex system of water management is visible through numerous impoundments and irrigation works. The landscape is defined by its drainages and high-altitude terrain, including the steep descent of Hells Hole and the broad reach of Boggy Basin. Smaller bodies of water like Belmear Lake, Arrowhead Lake, and the Old Dunham Reservoir dot the northwestern sections, while the south is dominated by the North Nipple Reservoir and Saddle Reservoir Number Two. Human engineering is evident in the path of the Beaver Cr Ditch and the Little Fish Cr Ditch, which redirect natural flows across the varied elevations of Flattop Mtn and Island Mesa. Trail networks, such as the Lone Cone Trl and the Jim Olterman - Lone Cone Swa Trl, provide access to this high-country terrain.