Mount Saint Helens topographic map
Interactive map
Click on the map to display elevation.
About this map
The Mount St. Helens major eruption of May 18, 1980 remains the deadliest and most economically destructive volcanic event in U.S. history. Fifty-seven people were killed; 200 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche, triggered by a magnitude 5.1 earthquake, caused a lateral eruption that reduced the elevation of the mountain's summit from 9,677 ft (2,950 m) to 8,363 ft (2,549 m), leaving a 1 mile (1.6 km) wide horseshoe-shaped crater. The debris avalanche was 0.6 cubic miles (2.5 km3) in volume. The 1980 eruption disrupted terrestrial ecosystems near the volcano. By contrast, aquatic ecosystems in the area greatly benefited from the amounts of ash, allowing life to multiply rapidly. Six years after the eruption, most lakes in the area had returned to their normal state.
Other topographic maps
Click on a map to view its topography, its elevation and its terrain.
![Camp Kwoneesum Dam topographic map, elevation, terrain](/pub/maps/way/hrgt/pzrmpzgt/icon.jpg)
Camp Kwoneesum Dam
United States > Washington > Skamania County
Camp Kwoneesum Dam, Skamania County, Washington, United States
Average elevation: 1,125 ft
![Northwoods topographic map, elevation, terrain](/pub/maps/node/v1cz/z2vvdnx/icon.jpg)
Northwoods
United States > Washington > Skamania County
Northwoods, Skamania County, Washington, United States
Average elevation: 1,467 ft
![Underwood topographic map, elevation, terrain](/pub/maps/node/x4tf/43lv9m2/icon.jpg)
Underwood
United States > Washington > Skamania County
Underwood, Skamania County, Washington, 98605, United States
Average elevation: 381 ft
![Sleeping Beauty topographic map, elevation, terrain](/pub/maps/node/8bm2/vdzvm5m2/icon.jpg)
Sleeping Beauty
United States > Washington > Skamania County
Sleeping Beauty, Skamania County, Washington, United States
Average elevation: 3,868 ft
![Lake Bonneville topographic map, elevation, terrain](/pub/maps/node/k4zs/59l8h1h/icon.jpg)
Lake Bonneville
United States > Washington > Skamania County
Lake Bonneville, Skamania County, Washington, 98639, United States
Average elevation: 269 ft
![Indian Heaven Wilderness topographic map, elevation, terrain](/pub/maps/relation/7rnh/kc5318/icon.jpg)
Indian Heaven Wilderness
United States > Washington > Skamania County
Indian Heaven Wilderness, Skamania County, Washington, United States
Average elevation: 3,907 ft
![Spirit Lake topographic map, elevation, terrain](/pub/maps/relation/63zs/9f7f14/icon.jpg)
Spirit Lake
United States > Washington > Skamania County
Spirit Lake, Skamania County, Washington, United States
Average elevation: 3,753 ft
![Lava Dome topographic map, elevation, terrain](/pub/maps/node/1vrr/87pzbqcz/icon.jpg)
Lava Dome
United States > Washington > Skamania County
Lava Dome, Skamania County, Washington, United States
Average elevation: 6,919 ft
![Skamania topographic map, elevation, terrain](/pub/maps/node/cx57/dkxq1z4/icon.jpg)
Skamania
United States > Washington > Skamania County
Skamania, Skamania County, Washington, 97014, United States
Average elevation: 194 ft
![North Bonneville topographic map, elevation, terrain](/pub/maps/relation/g2kl/z3x5k/icon.jpg)
North Bonneville
United States > Washington > Skamania County > North Bonneville
North Bonneville, Skamania County, Washington, 98639, United States
Average elevation: 659 ft
![Stevenson topographic map, elevation, terrain](/pub/maps/relation/lwdn/xnlb3/icon.jpg)
Stevenson
United States > Washington > Skamania County
Stevenson, Skamania County, Washington, 98648, United States
Average elevation: 246 ft
![Carson topographic map, elevation, terrain](/pub/maps/relation/wp4s/6rdnh/icon.jpg)
Carson
United States > Washington > Skamania County > Carson
Carson, Skamania County, Washington, 98610, United States
Average elevation: 751 ft
![Sunset Falls topographic map, elevation, terrain](/pub/maps/node/g75k/326zht9m/icon.jpg)
Sunset Falls
United States > Washington > Skamania County
Sunset Falls, Skamania County, Washington, United States
Average elevation: 1,499 ft
![Mount Saint Helens National Volcanic Monument topographic map, elevation, terrain](/pub/maps/relation/l11h/4kjpgt/icon.jpg)
Mount Saint Helens National Volcanic Monument
United States > Washington > Skamania County
Mount Saint Helens National Volcanic Monument, Skamania County, Washington, United States
Average elevation: 2,940 ft