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Obverse: 137--Mother Grundy Publisher: unknown MNM#01-01184 Most likely this formation was destroyed when US 6 was built throught Clear Creek Canyon over the railroad line in 1941-1952. Other views of this formation:
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Obverse: 137--Mother Grundy Publisher: unknown MNM#01-01184 Most likely this formation was destroyed when US 6 was built throught Clear Creek Canyon over the railroad line in 1941-1952. Other views of this formation:
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