Acquired October 22, 2008, this true-color image of Sequoia National Park shows a network of varied ecosystem, including conifer forests, river valleys, alpine vegetation, and bare rocks.
Acquired June 24, 2007, this natural-color image shows the eastern half of St. John Island in the U.S. Virgin Islands. The area pictured incorporates a national park and national monument.
Soldiers’ National Cemetery, where U.S. President Abraham Lincoln delivered the “Gettysburg Address” in November 1863, appears in this Ikonos satellite image from June 25, 2003.
Established in 1975, the park saw fur traders nearly two centuries earlier, and it supported human inhabitants thousands of years before that. Today, almost a third of the park is water, and travel through the park is usually by boat.