Deposits from the caldera-forming eruption 9,400 years ago, about 5 kilometers outside the eastern caldera wall. AVO scientist Dr. Jim Gardner stands near the base of ~6.5 meters of pumice fall, capped by ~2.5 m of densely welded pyroclastic flow material. Additional pyroclastic flow material above is obscured by slope wash. In the foreground is the top of the welded portion of pyroclastic flow deposit.
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