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

Canal full with water from the Colorado River, ca.1903 

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

Dry Colorado River bed below the canal, ca.1903 

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

Construction of the Imperial Canal head gate apron on the Colorado River, Sharps, ca.1903 

Men and horses work on the levee on the south bank of the Canal near the Colorado River, ca.1903 

The unsuccessful Coffer Dam under construction at the Lower Intake of the Colorado River, ca.1903 

Construction of the Imperial Canal head gate apron on the Colorado River, Sharps, ca.1903 

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

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

Bass Ferry crossing the Colorado River from the north side, Mystic Springs Trail, Grand Canyon, ca.1900-1930 

View of the Colorado River looking west from Bass Mystic Spring Trail, Grand Canyon, 1900-1930 

The headgate on the Imperial Canal at Sharps Heading, California, ca.1910 

Colorado River, from the Hance Trail, Grand Canyon, looking east, 1900-1930 

Colorado River from the foot of Bright Angel Trail, Grand Canyon, looking east, 1900-1930 

View of the distant Colorado River from Duttons Point, Grand Canyon, ca.1900-1930 

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

Bill Williams Fork of the Colorado River, 1900-1950 

Dr. George Wharton James and five others pulling themselves across the Colorado Chiquito River by cable ferry, ca.1900-1903