Shasta Lake or Lake Shasta is a large man-made reservoir created by the Shasta Dam in California, USA. Ten miles north of Redding, it is a popular area for boating, water-skiing and camping. Formed by the damming of the Sacramento River, Pit River, McCloud River and several smaller tributaries, the lake boasts 365 miles of shoreline in the typical arachniform shape of man-made lakes. Its water provides electricity and irrigation for the areas below the dam as well as flood control.