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Silver Star Mountain

Volcano on Silver Star Summit Trail in Gifford Pinchot NF, Cascade Range near Washougal, WA

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Silver Star Mountain is an extinct volcano in the southwestern Cascade Mountains in the U.S. state of Washington, named for the pattern of five prominent ridges that radiate from the summit in the shape of a star. The two peaks of the mountain dominate the horizon east of Vancouver, Washington. The mountain is the focus of the Silver Star Scenic Area. In September 1902 Silver Star Mountain was the center of the Yacolt Burn, the largest fire in Washington history until 2014, which took 38 lives and burned over 238,000 acres (963 km2) The smoke was so thick that street lights glowed at noon in Seattle 160 miles (260 km) away. With the loss of vegetative ground cover, a series of rockslides occurred on the slopes of Silver Star Mountain and neighboring uplands that also were affected by the…

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Volcano

Geologic Formation

Oligocene-Miocene volcanic rocks (WAOGMIv;0)

Geologic Formation