Nearly four decades of Landsat imagery have allowed researchers to closely monitor the retreat, and advance, of some of Kenai Fjords National Park's glaciers. The study didn't pinpoint the exact cause of the glaciers' movements, but rather documented for the National Park Service the behavior of 19 glaciers in the park located about two hours southwest of Anchorage, Alaska.

One person died and several others were injured when a boat flipped on a commercial river trip on the Colorado River in Grand Canyon National Park.

Effective immediately, the South Rim of Grand Canyon National Park will begin phasing into greater water restrictions and conservation measures due to a series of breaks in the Transcanyon Waterline.

The National Park Service will use a natural compound that is toxic to fish in an effort to remove non-native smallmouth bass and green sunfish from the Colorado River below the Glen Canyon Dam in Glen Canyon National Recreation Area.