where is mt st helens?

Question

mt st helens volcano

Answer 1

Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles (154 km) south of the city of Seattle and 53 miles (85 km) northeast of Portland, Oregon. The mountain is part of the Cascade Volcanoes and the Cascade Range which takes its English name from the British diplomat Lord St Helens, who was a friend of George Vancouver, an explorer who made a survey of the area in the late 18th century. Mount St. Helens is a part of the Pacific Ring of Fire that includes over 160 active volcanoes. This volcano is well known for its ash explosions and pyroclastic flows.

Geographic setting and description
Mount St. Helens is located 34 miles (55 km) west of Mount Adams, in the eastern part of the Cascade Range. These "sister and brother" volcanic mountains are each approximately 50 miles (80 km) from Mount Rainier, the largest of Cascade volcanoes. Mount Hood, the nearest major volcanic peak in Oregon, is 60 miles (95 km) southeast of Mount St. Helens.

Mount St. Helens is geologically young compared to the other major Cascade volcanoes. It only formed within the last 40,000 years, and the pre-1980 summit cone began rising around 2,200 years ago. The volcano is considered the most active in the Cascades within the Holocene epoch (the last 10,000 or so years).

Even before the 1980 eruption, Mount St. Helens was not the highest peak in the Cascade Range; its summit altitude made it only the fifth-highest peak in Washington State. It stood out prominently, however, from surrounding hills due to the symmetry and extensive snow and ice cover of the pre-1980 summit cone, earning it the nickname, "Fuji-san of America" ("Mount Fuji of America").[4] The peak rose more than 5,000 feet (1,500 m) above its base, where the lower flanks merge with adjacent ridges. The mountain is 6 miles (9.5 km) across at its base, which is at an altitude of 4,400 feet (1,340 m) on the northeastern side and 4,000 feet (1,220 m) elsewhere. At the pre-eruption tree-line the width of the cone was 4 miles (6.4 km).

Streams which start on the volcano enter three main river systems: the Toutle River on the north and north-west, the Kalama River on the west, and the Lewis River on the south and east. The streams are fed by abundant rain and snow. The average annual rainfall is 140 inches (3.6 m), and the snowpack on the mountain's upper slopes can reach 16 feet (4.9 m).[5] The Lewis River is impounded by three dams for hydroelectric power generation. The southern and eastern sides of the volcano drain into an upstream impoundment, the Swift Reservoir, which is directly south of the volcano's peak.

Although Mount St. Helens is in Skamania County, Washington, the best access routes to the mountain run through Cowlitz County, Washington to the west. Washington State Route 504, locally known as the Spirit Lake Memorial Highway, connects with the heavily traveled Interstate 5 at Exit 49, 34 miles (55 km) to the west of the mountain. That major north-south highway skirts the low-lying cities of Castle Rock, Longview and Kelso along the Cowlitz River, and passes through the Vancouver, Washington-Portland, Oregon metropolitan area less than 50 miles (80 km) to the southwest. The community nearest the volcano is Cougar, Washington, in the Lewis River valley 11 miles (18 km) south-southwest of the peak. Gifford Pinchot National Forest surrounds Mount St. Helens.

You could get more information from the link below...

Answer 2

Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles (154 km) south of the city of Seattle and 53 miles (85 km) northeast of Portland, Oregon.

Answer 3

In The Rocky Mountains, Western USA.

Answer 4

Bits of it are all over Washington State.

Answer 5

washington state, if I recall correctly

{edit} - Yes, and they even have their own visitors centre and web site - http://www.mtsthelens.net/