R. Bedrock Outcrop
(08.25.04, unknown) Bedrock outcrop
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B. Boulder
(08.25.04, unknown) Boulder (More than 256 millimeters in diameter)
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C. Cobble
(08.25.04, unknown) Cobble (Between 64 and 256 millimeters in diameter)
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P. Pebble
(08.25.04, unknown) Pebble (Between 4 and 64 millimeters in diameter)
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G. Granule
(08.25.04, unknown) Granule (Between 2 and 4 millimeters in diameter)
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S. Sand
(08.25.04, unknown) Sand (Between 0.06 and 2 millimeters in diameter)
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