Mill Creek Watershed Impoundment Reservoir
Reservoir in Clark County, Illinois · on the USGS Clark Center quadrangle
39.33998, -87.75898
Maps that show Mill Creek Watershed Impoundment Reservoir
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Clark Center, IL
Detailed map of terrain, trails and roads
USGS topo, 2024

Casey, IL
Old map for history, not navigation
USGS historical 15-minute topo (1942)

Casey, IL
Old map for history, not navigation
USGS historical 15-minute topo (1943)

Network to Freedom Brochure Map - National Underground Railroad Network to Freedom Program
National Park Service Maps · National Underground Railroad Network to Freedom Program

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-27 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-12 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).