R-4 Pool

Reservoir in Houston County, Minnesota · on the USGS Caledonia quadrangle

43.62842, -91.37735

Maps that show R-4 Pool

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Caledonia, MN — USGS 7.5-minute topo (2022)

Caledonia, MN

Detailed map of terrain, trails and roads

USGS topo, 2022

Brownsville, MN — USGS historical 15-minute topo (1956)

Brownsville, MN

Old map for history, not navigation

USGS historical 15-minute topo (1956)

Bureau of Land Management Eastern States Overview map — BLM Eastern States (2019)

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-28 (U.S.)

FAA, 2026-10-29

IFR Enroute High Altitude Chart H-02 (U.S.) — FAA, 2026-10-29

IFR Enroute High Altitude Chart H-02 (U.S.)

FAA, 2026-10-29

Name, class, county and location: USGS Geographic Names Information System (public domain).