Dry Sink
Basin in Morgan County, Missouri · on the USGS Proctor Creek quadrangle
38.29447, -92.89214
Maps that show Dry Sink
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Proctor Creek, MO
USGS topo, 2021
Gravois Mills, MO
USGS historical 15-minute topo (1904)
Gravois Mills, MO
USGS historical 15-minute topo (1949)
Gravois Mills, MO
USGS historical 15-minute topo (1961)
Network to Freedom Brochure Map - National Underground Railroad Network to Freedom Program
National Park Service Maps (public domain) · National Underground Railroad Network to Freedom Program
U.S. Fish and Wildlife Service Alligator Snapping Turtle Range (2024)
Fish & Wildlife Service Refuge Maps (public domain)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-16 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-27 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).