An effort by the National Park Service to let national park superintendents decide whether hoverboards, e-scooters, and Segways can be used in their parks is too open-ended to protect park resources, according to Public Employees for Environmental Responsibility.

Public input is being sought on a plan by the National Park Service and Washington State Transportation Department on a proposed project within the Mount Rainier Wilderness that seeks to reduce the risk of flooding and erosion to a segment of State Route 410 (SR 410) adjacent to the White River in Mount Rainier National Park. 

To time how fast a sprinter runs, you just need a stopwatch. To time how fast magma moves, you need to know a little bit about chemistry.

The Kīlauea volcano at Hawai'i Volcanoes National Park continues to put on a dazzing show, with fountains of lava being spit 400-500 feet into the air.