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clayish silt/sands of an arroyo bottom
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on coarse volcanic sands and mixed gravels of wide braided wash draining desert flats
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on low calcareous/gypseous clays of hillside above wash
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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