Castaic Lake State Recreation Area is one of the largest and most spectacular state water reservoirs in California! Large horseshoe shaped reservoir surrounded by low rolling hills. Castaic Lake State Recreation Area is a reservoir of the State Water Project. It is one of the Project's largest recreational lakes and the terminal of its west branch. The site includes 29 miles of shoreline. A major attraction is the 425-foot-tall Castaic Dam. The dam is 50' above the water line. Castaic Lake has two bodies of water. The lower lake is for non-power boating and canoeing. Swimming season on the lower lake runs from mid-May to mid-September. The upper lake is for sailing, power boating, water and jet skiing, and fishing. The lake is stocked with bass, trout, and catfish. Boat rentals and a tackle bait shop are available. Other recreational activities include hiking, biking trails, picnic areas and playgrounds. Rental group picnic areas are available for up to 600 people. Facilities include bathrooms, boat docks & ramps, picnic tables & grills. Castaic Lake State Recreation Area is 8,800 Acres. Located 40 miles north of downtown Los Angeles and 8 miles north of Six Flags Magic Mountain on Interstate 5. State roads, highways, and tunnels. Vacant rural lot. Dam, reservoir, and desert match.