Spring Lake
Reservoir in Blaine County, Oklahoma · on the USGS Greenfield quadrangle
35.68846, -98.42735
Maps that show Spring Lake
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Greenfield, OK
USGS topo, 2023
Geary, OK
USGS historical 15-minute topo (1942)
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
Name, class, county and location: USGS Geographic Names Information System (public domain).