Knob Tank
Reservoir in Graham County, Arizona · on the USGS Harrison Canyon quadrangle
32.54521, -110.24337
Maps that show Knob Tank
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Harrison Canyon, AZ
USGS topo, 2026
Sierra Bonita Ranch, AZ
USGS historical 15-minute topo (1940)
Sierra Bonita Ranch, AZ
USGS historical 15-minute topo (1942)
Sierra Bonita Ranch, AZ
USGS historical 15-minute topo (1943)
Santa Catalina Ranger District Motor Vehicle Use Map (MVUM)
Coronado National Forest
Safford 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).