| 21. | Placer mining gave way to hydraulic mining in the 1880s and continued through the 90's.
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| 22. | Months later Eccleston's diary began again in the Southern placer mines at Sierra Nevada Mountains.
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| 23. | Nothing detracts from the feeling of a remote placer mining operation of the 20th century.
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| 24. | The placer mining in this location was wildly successful.
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| 25. | The community, the center of a large placer mining section, was named for a Italians.
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| 26. | Placer mining was reported in the Cache Creek drainage of the Dutch Hills by 1906.
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| 27. | Grainger then travelled to northern British Columbia where he worked at placer mining, logging and journalism.
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| 28. | No significant placer mining was done on Admiralty.
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| 29. | Except while prohibited by law during WWII, placer mining near Nome has continued to this day.
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| 30. | At Dillon, a secondary line served the numerous gold dredges of the Breckenridge placer mining district.
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