South Sister Volcano

South Sister South Sister Volcano Photo

South Sister also known as Charity is the highest and youngest of the Three Sisters volcanic group in the central Cascades, Oregon. It dominates the .South Sister, also known as "Charity," is the youngest and tallest volcano It is a stratovolcano overlying an older shield structure, .A central area focused on South and Middle Sister is composed of more evolved andesite to rhyolite and relatively young volcanic rocks that .The most recent eruptions were of rhyolite near South Sister, about 2,000 years ago. Scientific and public interest in the Three Sisters volcanic .

South Sister, also known as "Charity," is the youngest and tallest volcano It is a stratovolcano overlying an older shield structure, .South Sister also known as Charity is the highest and youngest of the Three Sisters volcanic group in the central Cascades, Oregon. It dominates the . The most recent eruptions were of rhyolite near South Sister, about 2,000 years ago. Scientific and public interest in the Three Sisters volcanic .The most recent eruptions were from vents high on the north and south sides of the volcano. The produced long dacite lava flows. Middle Sister has also been .

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