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Collection: Books and Periodicals

Water Use in the Yuba and Bear Rivers by Thomas Pagenhart (1970) (243 pages)

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432 Plate 5.1, Relief Hill hydraulic mine in 1962. The old diggings, once served by both the North Bloomfield and Irwin Ditches, were reworked for several seasons after 1945, when Englebright debris dem was completed, Plates following show the hydraulic machinery at this site. Plate 5-2, Monitor or giant at Relief Hill, with Wendell Kallenberger, longtime North Bloomfield hydraulic miner and land owner, in 1962, The jet of water issuing from the giant has eaten away the gravel bank in the background, yet this powerful tool was counterpoised so that it could be controlled by a single operator, in both vertical and horizontal move. ment,