Holbrook Ridge (historical)

Ridge in Maricopa County, Arizona · on the USGS Boulder Mountain quadrangle

33.80282, -111.42986

Maps that show Holbrook Ridge (historical)

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Boulder Mountain, AZ — USGS 7.5-minute topo (2021)

Boulder Mountain, AZ

USGS topo, 2021

IFR Enroute Low Altitude Chart L-08 (U.S.) — FAA, 2026-10-29

IFR Enroute Low Altitude Chart L-08 (U.S.)

FAA, 2026-10-29

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

IFR Enroute High Altitude Chart H-03 (U.S.) — FAA, 2026-10-29

IFR Enroute High Altitude Chart H-03 (U.S.)

FAA, 2026-10-29

Nearby

Name, class, county and location: USGS Geographic Names Information System (public domain).