Bridge across the Colorado River in Blythe, ca.1900-1950 

Bridge over the Colorado River, showing an industrial yard in the foreground in Yuma, Arizona, [s.d.] 

Yuma, Arizona, with a bridge over the Colorado River, ca.1900 

Santa Fe Bridge at Needles, over the Colorado River to Arizona, 1900-1950 

Dry Colorado River bed below the canal, ca.1903 

A view of Fort Yuma and the Colorado River, ca.1898 

Colorado River Bridge in Yuma, Arizona, ca.1935 

Looking up the Colorado River from an island near where it enters the Imperial Canal, ca.1903 

Yuma Bridge over the Colorado River, Arizona, ca.1898 

Train running across a railroad bridge over the Colorado River in Yuma, Arizona, [s.d.] 

Sand bars on the Colorado River below Yuma, 1900-1950 

Wood Howe truss bridge across the Alamo River below Holtville, Imperial County, California, ca.1910 

Mesquite forest near the Colorado River, California, ca.1910-1920 

Canal congested with water from the Colorado River after five unsuccessful attempts at channeling the river, ca.1903 

The Colorado River in one of the Mojave canyons, California, 1900-1950 

Entrance to Beltram Slough near the Colorado River, ca.1903 

Colorado River in a canyon, ca.1900-1950 

Canal congested with sediment from the Colorado River after five unsuccessful attempts at channeling the river, ca.1903 

Long curving jetty formed from piles on the Colorado River, New Heading, ca.1900-1950 

Small outboard being launched at Needles in the Colorado River, ca.1900