The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you’re planning on visiting?

The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as needed." ...

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...

People have long wanted to add presidents to Mount Rushmore. But there's two big reasons that's unlikely, if not impossible.

1957: Mount St. Helens, before the eruption This is a general view of snow-covered Mount St. Helens in the Cascade Range, southwestern Washington state, on July 17, 1957.

The calendar says May but it looks more like winter up on Mount Washington. According to the National Weather Service on Saturday, 10.8 inches of snow fell at the Mount Washington Observatory.

Facts Mount St. Helens is located in Washington, about 55 miles northeast of Portland, Oregon, and 95 miles south of Seattle. It is administered by the National Forest Service, not the National ...

Facts Mount St. Helens is located in Washington, about 55 miles northeast of Portland, Oregon, and 95 miles south of Seattle. It is administered by the National Forest Service, not the National ...