Happy Hollow Lake
Reservoir in Atchison County, Missouri · on the USGS Fairfax quadrangle
40.32462, -95.48585
Maps that show Happy Hollow Lake
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Fairfax, MO
USGS topo, 2021
Tarkio, MO
USGS historical 15-minute topo (1939)
Tarkio, MO
USGS historical 15-minute topo (1940)
Tarkio, MO
USGS historical 15-minute topo (1941)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-10 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-12 (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).