A $5 increase is coming to entrance fees at many national parks beginning June 1 as the Interior Department searches for additional revenues to address the estimated $11.6 billion maintenance backlog in the National Park System.

Head to Acadia National Park in Maine this Sunday and, weather permitting, you can be among the first to drive the Park Loop Road this year.

After studying wildlife use, connectivity, and protected land status, scientists have pointed to a handful of places in southern California where it would make the most sense to build wildlife crossing structures along Interstate 15 and U.S. 101 to improve safety for the animals as well as genetic diversity for the region.

The murders of six in Virunga National Park in the Democratic Republic of the Congo, including five rangers, this week has been condemned by the director-general of UNESCO.