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canyon bottom along Rio San Ignacio, on sloping coarse volcanic tuff gravels accumulated at base of western wall of canyon.
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canyon bottom along Rio San Ignacio, on sloping coarse volcanic tuff gravels accumulated at base of western wall of canyon.
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canyon bottom along Rio San Ignacio, on sloping coarse volcanic tuff gravels accumulated at base of western wall of canyon.
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canyon bottom along Rio San Ignacio, on sloping coarse volcanic tuff gravels accumulated at base of western wall of canyon.
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