Union Hill
Summit in Pennington County, South Dakota · on the USGS Hill City quadrangle
43.97598, -103.59330
Maps that show Union Hill
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Hill City, SD
USGS topo, 2021
Custer, SD
USGS historical 15-minute topo (1956)
Buffalo Gap National Grassland Motor Vehicle Use Map (MVUM), Fall River Ranger District (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-02 (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-03 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-01 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).