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on graded rubble of old roadside pullout in white volcanic tuff
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on coarse volcanic gravels and alluvial sands below rhyolitic tuff cliffs forming narrow canyon bottom drained by small perennial creek.
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on coarse volcanic gravels and alluvial sands below rhyolitic tuff cliffs forming narrow canyon bottom drained by small perennial creek.
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on coarse volcanic gravels and alluvial sands below rhyolitic tuff cliffs forming narrow canyon bottom drained by small perennial creek.
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gravels at base of roadside cut in volcanic tuff
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coarse gravels at base of roadside cut in volcanic tuff
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coarse gravels at base of roadside cut in volcanic tuff
