Thompson Pond
Reservoir in Henry County, Illinois · on the USGS Nekoma quadrangle
41.17744, -90.19510
Maps that show Thompson Pond
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Nekoma, IL
Detailed map of terrain, trails and roads
USGS topo, 2024
Galva, IL
Old map for history, not navigation
USGS historical 15-minute topo (1940)
Galva, IL
Old map for history, not navigation
USGS historical 15-minute topo (1944)
Continental Glaciation Map - Tule Springs Fossil Beds National Monument
National Park Service Maps · Tule Springs Fossil Beds National Monument
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 Low Altitude Chart L-27 (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).