The Colorado River defines the border between Arizona and California on this map, cutting through the dramatic landscape of Mohave Canyon and Topock Gorge. At the center of the river's path is the settlement of Topock, where the Red Rock Bridge once served as a vital crossing point for travelers. The terrain is marked by distinctive geological formations such as The Needles, Pulpit Rock, and Cathedral Rock, which flank the narrow passage of the river south of Topock Bay.
37 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1903 · Needles
USGS Topo · 1:125,000
1904 · Needles Special
USGS Topo · 1:125,000
1943 · Topock
USGS Topo · 1:62,500
1950 · Topock
USGS Topo · 1:62,500
1950 · Sawtooth Range
USGS Topo · 1:62,500
1950 · Needles
USGS Topo · 1:62,500
1951 · Topock
USGS Topo · 1:62,500
1951 · Sawtooth Range
USGS Topo · 1:62,500
1952 · Needles
USGS Topo · 1:62,500
1954 · Needles
USGS Topo · 1:250,000