Plum Island
Island in Roberts County, South Dakota · on the USGS Wheaton West quadrangle
45.82524, -96.60896
Maps that show Plum Island
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Wheaton West, MN-SD
USGS topo, 2022
White Rock, SD
USGS historical 15-minute topo (1915)
White Rock, SD
USGS historical 15-minute topo (1918)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-14 (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).