Download PDF John Hay Reservoir (WY) 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 John Hay Reservoir topo map.
John Hay Reservoir topo maps are provided as PDF files.
Note: The most current map is the 2021 John Hay Reservoir topographic map.