Campsites, trails, visitor centers, museums, roads, water systems, restrooms are all essential in meeting the demands of protecting resources, educating the public, and enabling recreation. It is through the use of facilities that the public is able to maximize their experience in park units throughout the state. These parks protect and preserve an unparalleled collection of culturally and environmentally sensitive structures and habitats, threatened plant and animal species, ancient Native American sites, historic structures and artifacts... the best of California's natural and cultural history.