Clouds Over Pacific by Great Central Valley, California37.3N 122.3W
California’s Central Valley is a large, flat valley that dominates the central portion of the U.S. state of California.
The valley stretches approximately 450 miles (720 km) from northwest to southeast inland and parallel to the Pacific Ocean coast. Here, the coastline is flanked by clouds, a common occurence due to differences in cold ocean water and warm air temperatures.
Its northern half is referred to as the Sacramento Valley, and its southern half as the San Joaquin Valley. The Sacramento valley receives about 20 inches of rain annually, but the San Joaquin is very dry, often semi-arid desert in many places.