|Farmland near Fresno, CA|
A common narrative is that southern California is a desert and 'steals' northern California water. Although there is a small amount of truth in this statement, it does not accurately portray the situation. A complex systems of reservoirs, canals and pumps bring water EVERYWHERE in California. There is only one source: the snow pack of the Sierra Nevada, which includes Mammoth just as much as Tahoe.
|Melon picker heading to work, Firebaugh|
The reality is it doesn't rain anywhere in California between the months of June and October (generally speaking) except a tiny portion of the state near the Oregon border. Effectively, all of California is a desert. The South gets more water because they have more people and more agriculture. But they have their own snow pack too.