U.S. Raúl Grijalva, an Arizona Democrat who was a fierce advocate for national parks, passed away Thursday from complications related to cancer treatments. He was 77.

The Bureau of Land Management, the Forest Service and the Fish & Wildlife Service manage more public lands than the Parks ...

Sandra and Fiona's three-month ride through the U.S. became just the starting point of our round-the-world adventure. The ...

I served nearly 7 years in the U.S. Marine Corps as a combat engineer officer, leading teams in challenging environments and ...