Lake Hellums
Reservoir in Garfield County, Oklahoma · on the USGS Enid West quadrangle
36.48079, -97.89689
Maps that show Lake Hellums
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Enid West, OK
USGS topo, 2022

Enid, OK
USGS historical 15-minute topo (1956)

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-15 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-06 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).