1958 Map of Shadow Mountain

About this map

The Colorado River headwaters are defined here by massive mid-century water management projects at the western edge of Rocky Mountain National Park. This landscape centers on the connection between Shadow Mountain Lake and Granby Lake, where the Granby Pumping Plant and the engineering of the Adams Tunnel illustrate the era's complex irrigation and power infrastructure. Public lands dominate the area, managed by the Arapaho National Forest and the Shadow Mountain National Recreation Area, with various outposts like the Hilltop Ranger Sta and Twin Creeks Ranger Sta marking the human presence in this high-altitude terrain.