In fact, one of the nation's most beloved documentarians, Ken Burns, calls the national parks "America's best idea" in his 2009 documentary series for PBS. So it shouldn't be a surprise that ...

The idea met with heated opposition from politicians ... wolves were systematically eliminated from many national parks. The death of two wolf pups in 1926 marked the end of the species at ...

Naturalist Charles Sheldon first began promoting the idea of making McKinley a national ... Explore historical images of the national parks and the people who played a role in preserving them ...