What are the US state of Oregon's Three Sisters?

Oregon's Three Sisters are volcanoes found in the Cascade Mountain Range in central Oregon, USA, about 10 miles (16 kilometers) from the town of Sisters, Oregon. The entirety of the Cascades themselves extend from southern British Columbia to Northern California. North Sister is also called Hope, while Middle Sister and South Sister are called Faith and Charity, respectively, after the three Christian saints of the same names.

Though normally grouped as one unit, the Sisters have their own eruption history and geology. The South Sister erupted about 2,000 years ago and could erupt again, posing a threat to both animal and human life. Neither North nor Middle Sister has erupted in the past 14,000 years.

The Three Sisters are popular for both climbing and hiking enthusiasts. North Sister is considered the most dangerous of the Three Sisters and is known as "The beast of the Cascades." There are several other volcanoes both north and south of the Sisters, though not as close together, making this area one of the most thickly loaded volcanic areas in the world.