Download PDF Blackwells Corner (CA) 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 Blackwells Corner topo map.
Blackwells Corner topo maps are provided as PDF files.
Note: The most current map is the 2021 Blackwells Corner topographic map.