Mt. St. Helens

National Volcanic Monument · Washington

Park Stats

Area110,000 acres

Summit (1980+)2,549 m

Pre-1980 summit2,950 m

Established1982 (monument)

DEMUSGS 3DEP 10m

Notable Features

Summit (post-1980)2,549 m
Crater rim N2,376 m
Spirit Lake1,058 m
Toutle Valley mouth 280 m

Layer

Colored Hillshade

Elevation

Hillshade

Opacity 100%

About

On May 18, 1980, a magnitude-5.1 earthquake triggered the largest landslide in recorded history, decapitating the volcano and releasing a lateral blast that flattened forests over 600 km². The crater you see today is the scar; the dome inside it has been slowly rebuilding since. Spirit Lake, immediately north, is still partially covered by a floating raft of trees blown into it that day.

10 m colormap + 10 m hillshade NW @ 45° · sources at /data