Signal Butte
Summit in Maricopa County, Arizona · on the USGS Apache Junction quadrangle
33.42726, -111.59874
Maps that show Signal Butte
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Apache Junction, AZ
USGS topo, 2021

Desert Well, AZ
USGS historical 15-minute topo (1904)

Desert Well, AZ
USGS historical 15-minute topo (1906)

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-03 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).