Union Hill (Historical)

Summit in Pima County, Arizona · on the USGS Silver Bell West quadrangle

32.41785, -111.53484

Maps that show Union Hill (Historical)

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Silver Bell West, AZ — USGS 7.5-minute topo (2026)

Silver Bell West, AZ

USGS topo, 2026

Vaca Hills, AZ — USGS historical 15-minute topo (1959)

Vaca Hills, AZ

USGS historical 15-minute topo (1959)

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

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

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).