South Sister Volcano

Elevation (feet): 10,358
Elevation (meters): 3,157
Continent: North America
Country: United States
Range/Region: Cascade Range
State: Oregon
Latitude: 44.103519
Longitude: -121.769285
Difficulty: Walk up
Best months for climbing: Jul, Aug, Sep
Year first climbed: 1883
First successful climber(s): Adolph Dekum and party
Nearest major airport: Redmond, Portland
Convenient Center: Bend, Oregon

Thanks to David Stockton for adding this peak.

South Sister is the youngest and highest of a trio of closely grouped mountains called the Three Sisters. It is a very young volcano, and is characterized by a well-preserved summit cone with a circular crater at the top. In late summer of most years there is enough snowmelt in the crater to form a small lake, the highest body of water in the state of Oregon.

Thanks to David Stockton for this description.