September 17, 1787: "A Republic, If You Can Keep It"

Biological Miracle – Wood Frog

Frederick Law Olmsted: His essential theory (2000)

US National Park Service: create your own ink

U.S. National Park Service API

Teddy Roosevelt pursues the boat thieves (2015)

Disturbed Lands (National Park Service)

US citizens with permanent disabilities get free lifetime pass to National Parks

Pele's Hair

The Sound of Silence: A Noise Map of the U.S.

Fossilized Footprints Reveal Human Habitation of North America Thousands of Years Earlier than Previously Thought

Brood X cicadas, which come out ever 17 years, come out in the Eastern U.S.

Cliff Collapse Reveals 313-million-year-old Fossil Footprints in Grand Canyon National Park

Study by the National Park Service finds that urban coyotes in Los Angeles eat about 20% feral and outdoor cats.

Unmanned Aircraft to be Prohibited in America’s National Parks