Officials in Arizona and Colorado have closed huge swaths of parkland to visitors after lightning-sparked blazes destroyed thousands of acres and hundreds of structures.

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for humans to feel.

Everyone survived, but rescuers and bystanders had to perform CPR on two people who fell into the water and extract a third from a tree above a steep gorge.

The executive decision also requires all NPS sites to grant American residents preferential treatment in permit lotteries.

A habituated male elk chased visitors, poked its antlers into their tent, and then left a stinky surprise in their campsite. Park officials say they are monitoring the animal.

Four rescues in June prompted SAR squads to issue a request to pet owners: “these pup emergencies can be prevented.”

The Washington mountain is often underestimated, but local search and rescue teams suggest this is a new high.

A bison fell into the 160-degree Grand Prismatic Spring and died. An eyewitness tells us the ordeal was like seeing "the circle of life unfold.”

Officials have reminded the public that summer conditions can quickly become dangerously cold and windy atop the 6,288-foot peak.

After a dramatic uptick in search and rescue calls, an official in southern Washington is threatening to charge hikers who are deemed negligent.

Rescuers located Israeli-American hiker Samuel Vengrinovich near the city of Dharamshala in India’s Himalayan foothills.

On Tuesday, the U.S. Senate added a mandate to the budget bill to sell enormous swaths of public land managed by the Forest Service and Bureau of Land Management.

The National Park Service has reminded visitors to keep their distance from the 2,000-pound animals after a man from New Jersey was attacked.

A medevac crew in southern Colorado completed a helicopter rescue on the 14,055-foot mountain, which was recently reopened to hikers.

The explosion was captured on a webcam recently installed to monitor hydrothermal activity at the pool. No one was injured.

Colorado Parks and Wildlife advised dog owners to keep pets on-leash when walking in moose habitat, and to choose trails with good visibility

Inclement weather has delayed the search for a man who went missing on the West Buttress route.

More Perfect Union, a nonprofit advocating for workers‘ rights, has put up 300 billboards calling out the staffing cuts to national parks.