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Smith Rocks, Crooked River
Ref.#94 7022 ~ Smith Rocks, Crooked River
Around 30 million years ago, a gigantic depression (caldera) was formed by the sudden collapse of overlying rock into an underground reservoir of molten rock. The resulting eruptions produced massive amounts of ash and debris, nearly filling the caldera. These deposits eventually hardened into rock: the largest, on the western rim, is known as the Smith Rock Tuff. About a half a million years ago, flows of basalt lava poured into this area from vents nearly 50 miles away, capping off much of the tuff that filled the caldera.
The flat upper area of the park and surrounding area is on the surface of these now-hardened lava flows. Over time, erosion by the Crooked River has exposed and sculpted the magnificent landscape you see today.
Linhof Master Technica 4x5 view camera, Kodak Vericolor HC film
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