The United States Department of the Interior is responsible for managing and providing and facilitating conservation of federal land and America’s natural resources. The Department also administers programs which are for native Americans and territorial affairs.
 
 
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Contains details about land records, wild horses and burros, and information about the stakeholder workshops the agency hosts as well as news about pertinent things including hydraulic fracturing.
http://www.blm.gov
The United States Fish and Wildlife Service is an agency of the US government dedicated to studying and preserving America's wildlife. Read all about endangered species here and the legislation that protects them. The site also has scientific information on wildlife for the general public.
http://www.fws.gov/
National Park Service: Explore Nature
The NPS Nature and Science website makes it easy to learn about America's natural beauty. You can also see how the Service manages fires and encourages global conservation practices. You can also learn about biology and geology using this website.
http://www.nature.nps.gov/
The official website of the United States Geological Survey shares maps and imagery as well as publications about the organization, news stories about science, and articles about things such as earthquakes, droughts, volcanoes, and geospatial analysis.
http://www.usgs.gov/