Channel Islands National Park: The official National Park Service site. Includes statistics, trip planning guide, park regulations, and details of recreational activities

Geology Fieldnotes of Death Valley National Park: Includes article, pictures, maps, links, and teaching resources

Joshua Tree National Park: Official NPS site with park map and trip-planning help including camping, nature walks, birding, and ranger programs. Also details the park's history, plants, animals, and ecosystems

Lassen Volcanic National Park: The official NPS information site. Multimedia, trip planner, nature and science information, programs for kids, camping information, and job openings

National Park Service: Death Valley National Park: Official site, including information about natural and historical resources, news, events, weather, camping, lodging, fees, permits, facilities, and visitor guide

National Park Service: Sequoia & Kings Canyon National Parks: Official site, including information about natural resources, news, events, camping, lodging, fees, permits, and facilities

Redwood National Park: Official NPS site provides information on camping, park lodging, activities, and the California Redwoods

Yosemite National Park: Official National Park Service site. Includes information about activities, lodging, trip planning, fees and permits, and the park's nature, geology and history

Yosemite.com: Visitor information for the area in and around Yosemite National Park