| 21. | After hydraulic mining was banned, the town entered decline.
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| 22. | The community thrived, becoming a center for hydraulic mining.
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| 23. | Placer mining gave way to hydraulic mining in the 1880s and continued through the 90's.
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| 24. | A conduit was constructed to divert water from Virginia Creek to aid hydraulic mining operations.
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| 25. | There remains today much evidence of placer gold mining, hydraulic mining, and Chinese living there.
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| 26. | Large amounts of land in the Bear River drainage were radically altered by hydraulic mining.
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| 27. | Hydraulic mining originated out of ancient Roman techniques that used water to excavate soft underground deposits.
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| 28. | Three years later, the North Bloomfield Mining and Gravel Company arrived and began hydraulic mining operations.
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| 29. | Though known as a center for hydraulic mining, there was also drift mining around Blue Tent.
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| 30. | The approaching hydraulic mining undercut the town, and spoil banks began to pile up against buildings.
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