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Three Sisters

Oregon
The Three Sisters are closely spaced volcanic peaks in the U.S. state of Oregon. They are part of the Cascade Volcanic Arc, a segment of the Cascade Range in western North America extending from southern British Columbia through Washington and... Wikipedia
Mountain range: Cascade Range
Elevation: 10,364′
Last eruption: 440 CE
Age of rock: Quaternary
Coordinates: 44°06′12″N 121°46′09″W / 44.103449°N 121.7692058°W
Easiest route: Hiking or scrambling, plus glacier travel on some routes
Location: Lane and Deschutes counties, Oregon, U.S