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Nature & Science - Resource Management; Science & Nature Highlights

Oregon Spotted Frog Habitat Improvements

Learn more about our wildlife biologists work to improve habitat for the endangered Oregon Spotted Frog at the Gifford Pinchot National Forest by viewing this interactive story map

 

Mount St. Helens

Forty years ago, on the morning of May 18, 1980, a magnitude 5.1 earthquake triggered the collapse of the summit and north flank of Mount St. Helens and formed the largest landslide in recorded history.

Gas rich magma and super-heated groundwater trapped inside the volcano were suddenly released in a powerful lateral blast. In less than three minutes, 230 square miles of forest lay flattened. More information & videos about Mount St Helens eruption.

 

Mount St. Helens Science Resources

U.S. Forest Service

U.S. Geological Survey (USGS)

Last updated June 10th, 2025