The Whiskeytown-Shasta-Trinity National Recreation Area is comprised of 246,087 acres divided into three units: Whiskeytown, Shasta and Trinity. Each unit has a large manmade lake and its surrounding terrain which is perfect for camping, fishing, swimming, paddling, boating, backpacking, horseback riding, mountain biking, and hunting. The 42,500-acre Whiskeytown unit is managed by the National Park Service, while the Forest Service manages the 203,587-acre Shasta and Trinity units. The Trinity Lake area is divided into four sub-units: Lewiston Lake, Trinity Dam, Stuart Fork and North Lake areas, while Shasta Lake, the largest man-made reservoir in California, has Sacramento, McCloud, Squaw and Pit. Hikers, bikers, swimmers, boaters, anglers and campers will enjoy the facilities this area has to offer.