Hydraulic Mining

Hydraulic Mining (HMA85)

Location: West Sacramento, CA 95605 Yolo County
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Country: United States of America
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N 38° 34.993', W 121° 30.526'

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West Sacramento River Walk

Hydraulic gold mining was introduced in the 1850's. Men with hoses blasted hillsides with powerful jets of water, which reduced the hills to mounds of gravel 20 times faster than with pick and shovel. Massive quantities of gravel and silt from hydraulic mining washed into the river channel, filling the streambed and contributing to flooding in the valley.

The U.S. Bureau of Mines, estimated that $81 million in gold was removed from California mines in 1852. Between 1848 and 1855, approximately $400 million worth was chipped or blasted out of the mountains. Today, that gold would be worth approximately $8.5 billion.
HM NumberHMA85
Placed ByCity of West Sacramento
Marker ConditionNo reports yet
Date Added Tuesday, September 30th, 2014 at 4:33am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 629885 N 4271581
Decimal Degrees38.58321667, -121.50876667
Degrees and Decimal MinutesN 38° 34.993', W 121° 30.526'
Degrees, Minutes and Seconds38° 34' 59.58" N, 121° 30' 31.56" W
Driving DirectionsGoogle Maps
Area Code(s)916, 530
Closest Postal AddressAt or near 651 2nd St, West Sacramento CA 95605, US
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