Boundary Spring
Spring in Yavapai County, Arizona · on the USGS Groom Creek quadrangle
34.43988, -112.40652
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Groom Creek, AZ
USGS topo, 2026
Mt Union, AZ
USGS historical 15-minute topo (1947)
Mt Union, AZ
USGS historical 15-minute topo (1949)
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 High Altitude Chart H-04 (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).