Clear Lake, the largest freshwater lake entirely within the state of California [65 square miles (168 square kilometers)], nestles among the rugged Coast Range in this low-oblique, south-looking photograph. A popular tourist and fishing resort, Clear Lake is 25 miles (40 kilometers) long and 2 to 10 miles (3 to 16 kilometers) wide. The lake is fed at its north end by three small creeks that originate nearby in the humid Coast Range and is drained at its south end by Cache Creek, which flows southeast and empties into the Sacramento River. Mendocino National Forest is discernible in the bottom half of the photograph.