Cobblestone Reservoir
Reservoir in Harding County, South Dakota · on the USGS Ludlow quadrangle
45.80825, -103.45758
Maps that show Cobblestone Reservoir
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Ludlow, SD
Detailed map of terrain, trails and roads
USGS topo, 2021
Ludlow
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Custer Gallatin National Forest- Custer East
Forest Service forest map
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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).