Big Spring
Spring in Slope County, North Dakota · on the USGS Rocky Ridge South quadrangle
46.62501, -103.35379
Maps that show Big Spring
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Rocky Ridge North, ND
USGS topo, 2024
Rocky Ridge, ND
USGS historical 15-minute topo (1961)
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
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).