While the U.S. Fish and Wildlife Service has agreed to resume work to recover the red wolf, its decision to label the species as "nonessential" under the Endangered Species Act has spurred a lawsuit by the Center for Biological Diversity.

The state of Wyoming has taken a key step toward unloading its last remaining 640 acres locked within the borders of Grand Teton National Park. The land, in the heart of Jackson Hole, could be sold at auction.

A lawsuit challenging the fees users must pay on recreation.gov to reserve campsites, climb mountains, and paddle rivers has been withdrawn without explanation by the plaintffs.

Yellowstone is covered with evidence of glaciers. About 22,000 to 14,000 years ago, during the most recent ice age, ice draped the region to a thickness of a kilometer—that’s over half a mile! When the ice melted, it left debris everywhere, mantling much of the surface of Yellowstone National Park. For example, Hayden Valley, located between Yellowstone Lake and the Grand Canyon of the Yellowstone, contains glacial and lake sediment associated with multiple ice ages.