Grassy Tank
Reservoir in Greenlee County, Arizona · on the USGS Harden Cienega quadrangle
33.14651, -109.07555
Maps that show Grassy Tank
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Harden Cienega, NM-AZ
USGS topo, 2023

Big Lue Mts, AZ
USGS historical 15-minute topo (1962)

West Side Quemado Reserve Glenwood Front Motor Vehicle Use Map (MVUM)
Gila National Forest

IFR Enroute Low Altitude Chart L-05 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-04 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).