Sister Mountain, Primorsky Krai, Russia
The Three Sisters are three volcanic peaks that form a complex volcano in the Cascade Volcanic Arc, part of the Cascade Range in the U.S. state of Oregon. Each exceeding 10,000 feet (3,000 m) in elevation, they are the third-, fourth-, and fifth-highest peaks in Oregon. Located in the Three Sisters Wilderness, at the boundaries of Lane and Deschutes counties and the Willamette and Deschutes national forests, they are about 10 miles (16 km) south of the nearest town of Sisters.
Diverse species of flora and fauna inhabit the area on and around the mountains, which is subject to frequent snowfall, occasional rain, and extreme temperature variation between seasons. The mountains, particularly South Sister, are popular destinations for climbing and scrambling.
Although they are often grouped together as one unit, the three mountains evolved under differing geologic situations, and the petrologic composition of each mountain can vary significantly. North Sister is extinct and Middle Sister is dormant. South Sister, however, last erupted about 2,000 years ago and still could erupt, threatening life within the region. After satellite imagery detected tectonic uplift near South Sister in 2000, the United States Geological Survey improved monitoring in the immediate area.
Epic Russia Culture & Adventure Route © Monika Newbound
Own or work here?
