Basin Spring
Spring in Pima County, Arizona · on the USGS Helvetia quadrangle
31.80318, -110.78286
Maps that show Basin Spring
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Helvetia, AZ
USGS topo, 2021
Helvetia, AZ
USGS historical 15-minute topo (1926)
Sahuarita, AZ
USGS historical 15-minute topo (1958)
Nogales & Sierra Vista Ranger Districts
Front Motor Vehicle Use Map (MVUM) — Coronado National Forest
Nogales & Sierra Vista Ranger Districts -Back 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).