Aspen Butte, Shield volcano in Cascade Range, Oregon, United States.
Aspen Butte is a shield volcano in Oregon's Cascade Range rising to 2,500 meters elevation. Its north and northeast flanks display three large glacial cirques carved into the mountain's slopes.
This volcano formed between 5 and 3.5 million years ago as part of the Cascade Volcanic Arc. Its final eruption occurred during the Pleistocene epoch.
The Mountain Lakes region around this volcano gained protection as a primitive area in 1930, then became an official wilderness zone through the 1964 Wilderness Act. This designation shapes how visitors experience and move through the landscape today.
The Clover Creek Trail reaches the summit via a route that is roughly 17 kilometers long with approximately 800 meters of elevation gain from the trailhead. The hike requires good fitness, but the mountain provides natural stopping points along the way.
Mount Carmine stands as the highest remnant of the north flank and creates a distinct landmark in the landscape. Little Aspen Butte functions as a separate volcanic cone nearby and contributes to the area's geologic diversity.
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