The park runs roughly 40 miles along the Delaware River and the Appalachian Mountains, which are immediately adjacent to the river.
Published Jan 9, 2005
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.
Published Nov 15, 2009
State parks had already been established in the region when the U.S. Congress established northern California’s Redwood National Park in 1968.
Published Feb 22, 2009
The colonial communities of “America’s historic triangle” played defining roles in the road to American independence.
Published Jul 4, 2018
Americans celebrate the 75th anniversary of Shenandoah National Park, just 75 miles from Washington, DC, but worlds away in spirit.
Published Jun 25, 2011
Sites relevant to the start of the American Revolutionary War are interspersed throughout the modern-day Boston metropolitan region.
Published Jul 4, 2016
Maps of the underwater topography reveal reefs and sandbars within the largest marine park in the U.S. National Park System.
Published May 1, 2016
The park encompasses about 37,000 hectares of the Sonora Desert.
Published Jul 24, 2005
Falling blocks of rock in cliff alcoves became building materials for Ancestral Puebloans—and a popular draw for tourists visiting the park.
Published Aug 26, 2016
Over epochs, deposition and erosion have carved sharp spires and deep canyons out of this South Dakota landscape.
Published Aug 27, 2016
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.
Published Oct 1, 2006
This image shows the islands of Komodo National Park in the Lesser Sunda Islands, on July 20, 2000.
Published May 17, 2009
