Riddle Tank
Reservoir in Cochise County, Arizona · on the USGS Pedregosa Mountains East quadrangle
31.57441, -109.35149
Maps that show Riddle Tank
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Pedregosa Mountains East, AZ
USGS topo, 2021
Pedregosa Mountains, AZ
USGS historical 15-minute topo (1958)
Pedregosa, AZ
USGS historical 15-minute topo (1926)
Douglas Ranger District Motor Vehicle Use Map (MVUM)
Coronado 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).