These are the guys who build our many California Dams & Reservoirs. They are managing the lake & the structures nearby, so they created some lakeshore campsites, some of which accept reservations. These are usually nice facilties, with picnic areas, bathrooms, paved driveways, boat ramps for easy launching, that cater to families, RVers & fishermen. A lot of these lakes are located in the California Central Valley.