This metro Phoenix peak famous for its hiking is named after the first Native American woman to die while serving overseas in the U.S. military.

Van Wagner, a high school teacher and forester, completed his final climb of 67 trees on 67 peaks in all 67 Pennsylvania ...

Since its founding on August 25, 1916, the U.S. National Park Service has assembled 419 protected units, of which 62 hold the ...

A recent report estimated that vultures are worth $1.8 billion a year to certain ecosystems in southern Africa. Here's why.

Even old-school Harley-Davidson is active in the sector, with its spinoff LiveWire brand. And, a host of start-up companies, ...