Download PDF Grinnell South (IA) 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 Grinnell South topo map.
Grinnell South topo maps are provided as PDF files.
Note: The most current map is the 2022 Grinnell South topographic map.