South Lake
Reservoir in McHenry County, Illinois · on the USGS Huntley quadrangle
42.21555, -88.38178
Maps that show South Lake
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Huntley, IL
Detailed map of terrain, trails and roads
USGS topo, 2024

Elgin, IL
Old map for history, not navigation
USGS historical 15-minute topo (1925)

Elgin, IL
Old map for history, not navigation
USGS historical 15-minute topo (1940)

Elgin, IL
Old map for history, not navigation
USGS historical 15-minute topo (1962)

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-31 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).