MT. HOOD - Townsquare Interactive
... form pyroclastic flows and lahars that were distributed primarily to the south and west along the Sandy River and its tributaries. The last eruptive period began in AD 1781 and affected the White River as well as Sandy River valleys. The Lewis and Clark Expedition explored the mouth of the Sandy Riv ...
... form pyroclastic flows and lahars that were distributed primarily to the south and west along the Sandy River and its tributaries. The last eruptive period began in AD 1781 and affected the White River as well as Sandy River valleys. The Lewis and Clark Expedition explored the mouth of the Sandy Riv ...
Mount Rainer
... the earth. This Meso-Indian assumption has neither been proven nor disproven, but recently, a series of miniearthquakes have led scientists to believe that there very well could be some sort of cave or even "tunnel" toward the center of the mountain. ...
... the earth. This Meso-Indian assumption has neither been proven nor disproven, but recently, a series of miniearthquakes have led scientists to believe that there very well could be some sort of cave or even "tunnel" toward the center of the mountain. ...
composite volcanoes - Mesa Public Schools
... A sleeping giant awoke on May 18, 1980. An enormous blast blew off the top and side of this mountain in Washington state. There had been warnings of volcanic activity in the form of earthquakes and venting of steam for two months. Mount St. Helens had been dormant since 1831. Mt. St. Helens blew a c ...
... A sleeping giant awoke on May 18, 1980. An enormous blast blew off the top and side of this mountain in Washington state. There had been warnings of volcanic activity in the form of earthquakes and venting of steam for two months. Mount St. Helens had been dormant since 1831. Mt. St. Helens blew a c ...
Cascade Range Volcanoes
... rush down the slopes of Mt. Saint Helens in the days following the large eruption. ...
... rush down the slopes of Mt. Saint Helens in the days following the large eruption. ...
Mount Adams (Washington)
Mount Adams, known by some native American tribes as Pahto or Klickitat, is a potentially active stratovolcano in the Cascade Range. It is the second-highest mountain in the U.S. state of Washington, trailing only Mount Rainier.Adams is a member of the Cascade Volcanic Arc, and is one of the arc's largest volcanoes,located in a remote wilderness approximately 34 miles (55 km) east of Mount St. Helens.The Mount Adams Wilderness comprises the upper and western part of the volcano's cone. The eastern side of the mountain is part of the Yakama Nation.Adams' asymmetrical and broad body rises 1.5 miles (2.4 km) above the Cascade crest. Its nearly flat summit was formed as a result of cone-building eruptions from separated vents. Air travelers flying the busy routes above the area sometimes confuse Mount Adams with nearby Mount Rainier, which has a similar flat-topped shape.The Pacific Crest Trail traverses the western flank of the mountain.Although Adams has not erupted in over 1,400 years, it is not considered extinct.