This is a strenuous hike -- about 5 miles round trip, but so worth the effort! This peak erupted on May 15, 1922, and this southernmost active volcano in the Cascade Range devastated nearby areas and rained volcanic ash as far away as 200 miles to the east. This was the most powerful explosion in the 1914-17 series of eruptions that were the last to occur in the Cascades before the 1980 eruption of Mt. St. Helens. There are so many fantastic vistas of the park and surrounding areas from the trail. The summit provides one of the most spectacular views of the Devastated Area. I would recommend beginning this hike earlier in the day (before 12 noon), as afternoon thunderstorms are common, as are lightening strikes on the mountain.
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