Lower Four Tank
Reservoir in Santa Cruz County, Arizona · on the USGS Harshaw quadrangle
31.39484, -110.64878
Maps that show Lower Four Tank
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Harshaw, AZ — USGS 7.5-minute topo (2021)
USGS Topo Maps (public domain) · Arizona
Public domain
Nogales & Sierra Vista Ranger Districts -Back Motor Vehicle Use Map (MVUM) — Coronado National Forest
Forest Service Maps (public domain) · Coronado National Forest
Public domain
IFR Enroute Low Altitude Chart L-05 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute High Altitude Chart H-04 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).