<P> The Colorado River originates more than 1,000 miles ( 1,600 km ) from California in the Rocky Mountains of Colorado and Wyoming and forms the state 's southeastern border in the Mojave Desert . Unlike the other California watersheds , essentially all of the water flowing in the Colorado originates outside the state . The Colorado is a critical source of irrigation and urban water for southern California , providing between 55 and 65 percent of the total supply . </P>
<P> The Colorado River originates more than 1,000 miles ( 1,600 km ) from California in the Rocky Mountains of Colorado and Wyoming and forms the state 's southeastern border in the Mojave Desert . Unlike the other California watersheds , essentially all of the water flowing in the Colorado originates outside the state . The Colorado is a critical source of irrigation and urban water for southern California , providing between 55 and 65 percent of the total supply . </P>
where does southern california get most of its water
where does southern california get most of its water
The Colorado River
The Colorado River