Old water wheel on the Zanja Madre on South Alameda Street near Washington Boulevard, ca.1900 

Water wheel near Elysian Park which raised water from the Zanja Madre that flowed to a reservoir in the Pueblo, ca.1870 

Close-up of a zanja (irrigation ditch) in Sixth Street Park (later Pershing Square), Los Angeles, ca.1876-1880 

Close-up of one of 50 flowing water wells on Chino Ranch, ca.1903-1905 

View of a zanja, a water ditch, at the San Bernardino Mission Assistencia, ca.1900 

Close-up view of the Zanja Madre, the main irrigation ditch in Riverside, 1903 

View of a water wheel in Redding, [s.d.] 

Panoramic view of the Sierra Madre Ranch (fruit ranch) in the city of Monrovia, taken from Sierra Madre Heights, 1902 

Two unidentified people holding hallowed logs from the first pipes used for domestic water, ca.1950 

Water wheel developed by Dr. Edward Bale in 1847 in Saint Helena, Napa County, California, ca.1900 

Water wheel developed by Dr. Edward Bale in 1847 in Saint Helena, Napa County, California, ca.1900 

Water intake irrigation system at Mission San Fernando, 1924 

Los Nogales Ranch House in Spadra, home of Don Ramon Vejar, ca.1860 

Men with cows on a Sierra Madre cattle ranch, ca.1900 

Figueroa Street with zanja (irrigation channel) parallel to sidewalk, ca.1906 

Pipeline on the Los Angeles Aqueduct bringing water from Owens Valley to Los Angeles, ca.1950 

Artesian well at an old adobe ranch house, South Pasadena, ca.1884-1886 

Men and burros laboring at a "Mexican Water System" around what may be a large well, ca.1920 

Homemade windwmill on the Agua Hedionda ranch, home of Juan Maria Marron, ca.1930 

Trees in Imperial Valley after irrigation