Gregg Lake
Reservoir in Box Butte County, Nebraska · on the USGS Marsland quadrangle
42.43631, -103.29509
Maps that show Gregg Lake
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Marsland, NE
USGS topo, 2023
Marsland, NE
USGS historical 15-minute topo (1951)
Nebraska National Forest, Pine Ridge Ranger District Motor Vehicle Use Map (MVUM) (2020)
Forest Service Maps (public domain) · Nebraska National Forests and Grasslands
IFR Enroute Low Altitude Chart L-12 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-13 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-01 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).