Nick Mott

Yellowstone employs more than 3,000 people at peak season, finding enough affordable housing for them has long been a problem.

Authorities have been unable to find the bear that killed a woman near Yellowstone National Park late last month. The attack has renewed calls to take grizzlies off the endangered species list.

States neighboring Yellowstone National Park have eased rules on hunting wolves, resulting in the most being killed in nearly a century

Big wildfires create their own weather, and can even spawn tornadoes swirling with smoke and flame. Researchers are trying to determine how often they occur.

Researchers who study evidence of fires through the millennia say to expect more and bigger fires as the climate continues to warm. Fire season is already months longer than in the 1970s.

Medical staff are liaisons to the sick and dying for relatives not allowed at bedsides. The emotional toil at one Montana hospital is a case study of what caregivers are grappling with across the U.S.