The American National Park and National Monument run by the US department of interior provides samples of the diversity of American landscape. This page lists web resources related to National Parks. There is a little bit of bias toward parks in the Mountain West.
eParks.com (*) - review eParks is the office store of the National Park System. You can find collectibles including the Passport book which you can get stamped at the parks you visit.
National Park Service (www.nps.gov) The official National Park Web Site by the US Department of Interior.
National Public Lands Day (www.publiclandsday.org) National Public Lands Day celebrates open space. This event in September hosts numerous clean up projects.
U.S. Department of the Interior (www.doi.gov) The National Park Service is an agency of the Department of the Interior and reports to the Secretary of the Interior.
National Park Foundation (www.nationalparks.org) Chartered by Congress in 1967, the National Park Foundation is a service organization of private citizens working to preserve and promote the National Park System.
National Parks Traveler (www.nationalparkstraveler.com) The National Parks Traveler is a private site with news about the National Park System.
National Park Trust (www.parktrust.org) The National Park Trust is dedicated to preserving parks today and creating park stewards for tomorrow.
List Of US National Parks (listofusnationalparks.com) Site has data and photos of America's National Parks.