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South Sister Peak Caldera
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Aerial view of the Three Sisters
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Another aerial view
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Three Sisters in December 2008
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Rock Mesa near South Sister
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Another view to Rock Mesa
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Middle Sister (left) and South Sister
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Middle Sister (left) and South Sister
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Middle Sister
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Middle Sister
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Middle Sister
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North Sister and Middle Sister
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North Sister from Pacific Crest Trail
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Sunrise over North Sister
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USGS GPS Station, The Husband, Three Sisters
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North and Middle Sister from McKenzie Pass
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Aerial view from the west of South Sister
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Aerial view of South Sister (left) and Broken Top
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South Sister from Elk Lake
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South Sister and Sparks Lake
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South Sister as seen from the southeast
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South Sister as seen from the west
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South Sister as seen from the south
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South Sister from the Wickiup Plain
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Sparks Lake and the South Sister
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Sparks Lake and the South Sister
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Sparks Lake and the South Sister
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Sparks Lake and the South Sister
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Aerial view of the south flank of South Sister composite volcano showing numerous blocky lava flows erupted about 2,000 years ago
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The Three Sisters—South, Middle, and North, looking north—with Broken Top in the bottom right
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Aerial view, looking east, of, from left: North Sister, Middle Sister, South Sister, Broken Top, and Mount Bachelor
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North, Middle, and South Sister, looking east
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North and Middle Sister
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Drive to Sisters on Highway 242
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View of the Three Sisters from Horse Rock Ridge near Crawfordsville, Oregon
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Panoramic image of Broken Top and The Three Sisters taken from the top of Paulina Peak