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Showing: 1 to 10 of 125 matches for "Yuba Gold Placer California"  Page   1   2   3   4   5   6   7   8   9  next TITLE The Gold Placer Industry, Present and Future  SUMMARY ... B:.lolo Gold Dredging Co./Placer Development Corp. ... Pato Consolidated Gold Dredging Ltd. ... Yuba Consolidated Gold Fields Corp., California, Alaska, Canada. ... AUTHOR Richardson, Mortimer J. PUBLISHED 1992 TITLE San Francisco Paper - Gold-Production in California  SUMMARY ... mining for gold, or even in the placer fields, aside ... the Oroville field, a decrease in gold-output is ... points where the Feather, American, and Yuba rivers leave ... AUTHOR Yale, Charles G. PUBLISHED 1912 TITLE The History of Gold Dredging  SUMMARY ... 2 PRACTICAL PLACER MINING ... In point of fad, introducing mineral jigs into gold dredges in ... not occur until the late 1930's when the California Yuba type dredges ... AUTHOR Richardson, Mortimer J. PUBLISHED 1992 TITLE Bucketing up the Wash û R H Postlethwaite and the Evolution of the Californian Style Gold Dredge  SUMMARY ... At first Californian placer miners showed little interest ... Dredger King’ and founder of Yuba Consolidated Goldfields ... was the first bucket ladder gold dredge in ... PUBLISHED 2003 TITLE Papers - Mining - Extending the Scope of Placer Dredging. (Mining Technology, July 1941)  SUMMARY ... Deep digging is leading to the develop- ment of many placer fields, and dredging properties ... One is operated by Yuba Consolidated Gold Fields in ... AUTHOR Romanowitz, C.M. ; Sawin, H. A. PUBLISHED 1943 TITLE Extending The Scope Of Placer Dredging  SUMMARY ... Deep digging is leading to the develop- ment of many placer fields, and dredging properties ... One is operated by Yuba Consolidated Gold Fields in ... AUTHOR Romanowitz, C. M. ; Sawin, H. A. PUBLISHED 1941 TITLE Extending The Scope Of Placer Dredging  SUMMARY ... develop- ments are worthy of note, because they make possible the dredging of placer de- posits of ... At Hammonton, Calif., Yuba Con- solidated Gold Fields has ... AUTHOR Romanowitz, C. M. ; Sawin, H. A. PUBLISHED 1941 TITLE How To Mine And Prospect For Placer Gold  SUMMARY ... countie.s in which placer gold is known ... Mariposa, Mono, Monterey, Nevada, Placer, Plumas, Sacramento ... Obispo, Shasta, Sierra, Siskiyou, Trinity, Tuolumne, Yuba. ... AUTHOR West, J. M. PUBLISHED 1971 TITLE The Evolution Of Floating Dredges For Mining Operations  SUMMARY ... and economically mined with the California-type dredge. ... almost a complete cessation of the placer gold mining industry ... below water level on the Yuba River, east ... AUTHOR Romanowitz, Charles M. PUBLISHED 1969 TITLE Recovering Byproduct Heavy Minerals From Sand And Gravel, Placer Gold, And Industrial Mineral Operations  SUMMARY ... 2 2. Samples from Pit, Feather, and Yuba Rivers area ... HM) from sand and gravel, placer gold, and industrial mineral operations in northern California. ... AUTHOR Gomes, J. M. PUBLISHED 1979 Showing: 1 to 10 of 125 matches for "Yuba Gold Placer California"  Page   1   2   3   4   5   6   7   8   9  next Search Again