| 21. | A 10 stamp mill was built in 1865, and a 20 stamp mill by 1867.
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| 22. | In 1878 a richer deposit was found, resulting in the construction of a stamp mill.
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| 23. | A 10 Stamp mill was built at this mine.
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| 24. | In 1887, a 120-stamp mill was erected, which was doubled in size the next year.
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| 25. | Explorations on an experimental basis included a five-stamp mill.
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| 26. | The rock was crushed in a four-stamp mill with 600-pound stamps, and a Huntington mill.
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| 27. | A stamp mill settlement about four miles ( 6 km ) away was named Waterman.
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| 28. | A 20-stamp mill was in operation by 1901.
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| 29. | The ore was low grade and the local stamp mills have not operated in many years.
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| 30. | Properly capitalized as the Congress Gold Company, a stamp mill was built and the mine opened.
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