NORAD said the exercise demonstrated its ability to conduct operations to ensure the defense of North America.

Russian military aircraft were seen flying off the coast of Alaska, marking the latest in a string of sightings. U.S. officials did not consider it a threat.

Russian military aircraft were seen flying off the coast of Alaska, marking the latest in a string of sightings. U.S. officials did not consider it a threat.

Mount Rainier is rattled by more than 300 earthquakes. It's the largest swarm in years. The last large earthquake swarm at Mount Rainier occurred in 2009. During that time, more than 1,000 ...

VANCOUVER — Norad says it scrambled F-15 fighter jets in response to the alleged hijacking of a small aircraft on Tuesday that disrupted operations at Vancouver International Airport.

Following the death of a Florida man on Mount Washington, state officials are reminding hikers to have a plan and prepare for emergencies before hitting the trails this summer.

Over 200 earthquakes have been detected around Mount Rainier, Washington, raising eyebrows during the biggest swarm of tremors in nearly two decades.

CHEYENNE — Cheyenne Day is an annual tradition where many local businesses and government offices close for all or part of the day to allow employees and residents a chance ...

A Big Apple banking executive and father-of-three died after quickly hiking up and down a Wyoming peak six times during an “Everesting” endurance challenge.

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake swarm" hit the site starting on Tuesday.

Over 300 earthquakes detected under Mount Rainier in July. Learn about safety, eruption risk, and whether it’s safe to visit the active volcano this summer.