Outdoor enthusiasts are worried about the loss of their favorite vistas as President Donald Trump's administration considers ...

After visiting all 63 national parks in the US, my favorites include Yosemite and Grand Teton. I think one of the worst parks is Gateway Arch.

Firings, buyouts and a lack of seasonal workers could mean jammed roads, closed campgrounds, limited hours and more. What you ...

Congress amended the Clean Air Act in 1977 to make restoring and maintaining visibility a goal for 156 national parks, wilderness areas, wildlife refuges and tribal reservations across 36 states.

Congress amended the Clean Air Act in 1977 to make restoring and maintaining visibility a goal for 156 national parks, wilderness areas, wildlife refuges and tribal reservations across 36 states.

Congress amended the Clean Air Act in 1977 to make restoring and maintaining visibility a goal for 156 national parks, wilderness areas, wildlife refuges and tribal reservations across 36 states.