Heer Hill
Summit in Jo Daviess County, Illinois · on the USGS Blackhawk quadrangle
42.21796, -90.17773
Maps that show Heer Hill
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Blackhawk, IL-IA
Detailed map of terrain, trails and roads
USGS topo, 2024
Upper Miss Refuge Upper Pool13
Upper Mississippi River National Wildlife and Fish Refuge Upper Mississippi River National Wildlife and Fish Refuge has been a haven for migratory birds, fish, wildlif
Savanna, IA
Old map for history, not navigation
USGS historical 15-minute topo (1892)
Savanna, IL
Old map for history, not navigation
USGS historical 15-minute topo (1952)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-28 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).