There are state hospitals for the insane at Agnew, Santa Clara county; at Stockton, San Joaquin county; at Napa, Napa county; at Patton, San Bernardino county; and, with a colony of tubercular patients, at Ukiah, Mendocino county.
Thousands of artesian wells have been bored, the region between Los Angeles, Santa Clara and San Bernardino being one of the most important artesian well regions of the world.
In borax (of which California's output in 1904 was 45,647 tons) and structural materials San Bernardino has a long lead.
Eight other cities had populations of more than 5000 - Riverside City (7973), Vallejo (7965), Eureka (7327), Santa Rosa (6673), Santa Barbara (6587), San Bernardino (6156), Santa Cruz (5659), and Pomona (5526).
In a few localities, notably in South Dakota, the Yakima valley of Washington, San Joaquin, and San Bernardino valleys of California, San Luis valley of Colorado, and Utah valley of Utah, water from artesian wells was also used for the irrigation of from 1 to 160 acres.
Fall, which covers all the rest of the state save Inyo, Kern and San Bernardino counties, Imperial county and the eastern portion of Riverside county; the precipitation of this belt is from o to 10 in.