Download PDF Thirtyone Mile Mountain (CO) USGS topo maps. These are full-sheet 7.5 Minute (1:24,000 scale) topographic maps. The red outline on the map below identifies the boundaries of the Thirtyone Mile Mountain topo map.
Thirtyone Mile Mountain topo maps are provided as PDF files.
Note: The most current map is the 2022 Thirtyone Mile Mountain topographic map.