You can learn about the fur trading days of the 19th century, and pick the brains of some experts on the period, during an upcoming book signing at Knife River Indian Villages National Historic Site in North Dakota.

Glacier National Park officials are predicting that the entire Going-to-the-Sun Road, which was buried in places by a number of mud-and-rock slides on Tuesday, will be open for end-to-end travel by Thursday evening.

Pointing to the National Park Service's own testing as evidence, National Parks Conservation Association officials are criticizing a proposed winter-use plan for Yellowstone National Park, saying testing shows snowmobiles have gotten dirtier and noiser, not cleaner and quieter.