Heading to Glacier National Park next week and wondering what you can do after driving the Going-to-the-Sun Road? There's a special ranger program scheduled for July 18 that might be good to add to your to-do list.

Firing a semi-automatic rifle while walking toward Canyon Lodge in Yellowstone National Park, the Florida man reportedly was determined to conduct a mass shooting on July 4 when law enforcement rangers killed him in a shootout that left one ranger wounded.

In the late 1800s, geologists studying the Great Plains region of the United States puzzled over strange deposits. For example, a "white, flour-like earth" in Nebraska. Although initially thought to be from nearby hot springs, under the microscope it was determined that these deposits, which could be found across the region, were from volcanic ash that had rained down from some huge prehistoric eruption.

Along 1,600 miles of the Eastern Seaboard, from Maine to Florida, climatological alterations are challenging the National Park Service to figure out how best to protect wildlife and their habitats, as well as historic structures, archaeological sites, modern infrastructure, landscapes, and, of course, visitors.