| 1. | The operation of the hydraulic mine greatly damaged the Huaca del Sol.
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| 2. | Hydraulic mines were reopened from 1933 to 1957 during the Great Depression.
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| 3. | Hydraulic mining became the largest-scale, and most devastating, form of placer mining.
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| 4. | A part of the floodplain was reclaimed by method of hydraulic mining.
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| 5. | Hydraulic mining has since been used in various forms around the world.
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| 6. | By 1853 miners invented a new method of mining called hydraulic mining.
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| 7. | When the ditch / flume was completed, full scale hydraulic mining began.
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| 8. | During the Great Depression, Sterlingville saw a revival of hydraulic mining.
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| 9. | In addition, the water sources and gradients supported the development of hydraulic mining.
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| 10. | But with the eventual curtailment of hydraulic mining, miners moved away.
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