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Carte topographique Spirit Lake
Cliquez sur la carte pour afficher l’altitude.
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Spirit Lake
Prior to 1980, Spirit Lake consisted of two arms that occupied what had been the valleys of the North Fork Toutle River and a tributary. About 4,000 years ago, these valleys were blocked by lahars and pyroclastic flow deposits from Mount St. Helens to form the pre-1980 Spirit Lake. The longest branch of Spirit Lake was about 2.1 miles (3.4 km) long. A stable outlet channel flowed from the lake to the North Fork Toutle River across a natural dam composed of volcanic material. The level of Spirit Lake remained basically stable, at an altitude of about 3,198 ft (970 m).
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À propos de cette carte
Nom : Carte topographique Spirit Lake, altitude, relief.
Lieu : Spirit Lake, Skamania County, Washington, United States (46.24663 -122.16614 46.29837 -122.11151)
Altitude moyenne : 1 144 m
Altitude minimum : 905 m
Altitude maximum : 1 609 m
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Autres cartes topographiques
Cliquez sur une carte pour visualiser sa topographie, son altitude et son relief.
Mount Saint Helens
United States > Washington > Skamania County
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,…
Altitude moyenne : 2 096 m
Mount Saint Helens
United States > Washington > Skamania County
The Mount St. Helens major eruption of May 18, 1980 is currently the 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…
Altitude moyenne : 2 096 m
Mount Saint Helens
United States > Washington > Skamania County
The Mount St. Helens major eruption of May 18, 1980, is currently the most economically destructive volcanic event in U.S. history. 57 people were killed and 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…
Altitude moyenne : 2 096 m
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Mount Saint Helens
United States > Washington > Skamania County
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,…
Altitude moyenne : 2 096 m
Faire un don
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Mount Saint Helens
United States > Washington > Skamania County
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,…
Altitude moyenne : 2 096 m
Mount Saint Helens
United States > Washington > Skamania County
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,…
Altitude moyenne : 2 096 m