1964 Map of Lake San Cristobal

About this map

Lake San Cristobal dominates the central valley of this 1960s survey, illustrating the high-altitude hydrology and geology of Hinsdale County. The map details the massive earthflow known as the Slumgullion Slide, which dammed the Lake Fork Gunnison River to form the lake. Evidence of human activity and industry is scattered throughout the surrounding peaks, including several mines and a Gravel Pit along the river banks.