The Other California Gold: Trinity County Placer Mining, 1848-1962
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Applicability of Siberian Placer Mining Technology to Alaska
MIRL Report No. 89 Applicability- - of Siberian Placer Mining Technology to Alaska Dr. Frank J. Skudrzyk, Project Manager E++W Engineering Consultants 461 1 Dartmouth Fairbanks, Alaska James C,Barker U.S. Bureau of Mines Alaska Field Operations Cenkr Fairbanks. Alaska Daniel E. Walsh School of Mineral Engineering University of Alaska Fairbanks Fairbanks, Alaska Rocky MacDonald American Arctic Company Fairbanks, Alaska Library of Congress Cataloging in Publication Data Library of Congress Catalog Card Number: 9 1-6 1923 ISBN 0-911043-12-8 May, 1991 Published bv Mined Industry Research Laboratory 212 ONeill Building University of Alaska Fairbanks Fairbanks, Alaska 99775-1 180 Alaska Science and Technology Foundation 550 West 7th Avenue Suite 360 Anchorage, Alaska 99501 ABSTRACT The result of Perestroyka and Glasnost has been an awakening of potential for cooperation between East and West. Nowhere has that been better demonstrated than between Alaska and Magadan Province, USSR. This report summarizes a one year effort financed by ASTF, with participation from several technical organizations, to establish contacts with the Siberian placer mining industry. The purpose of the project was to provide initial assessment of the Soviet technology for placer mining in permafrost. A ten day trip to Magadan province by an ASTF team and a similar length visit to Alaska by the Soviet mining group representing the All Union Scientific and Research Institute of Gold and Rare Metals, (VNII-I), Magadan are described. The report also reviews translated data on mining in permafrost and describes surface and underground placer mining technology developed by the Soviets. The report also lists relevant publications on Soviet mining research and state of the art Soviet mining technology and expertise. -
Shilling Yosemite Ranch Mariposa County, California Proudly Offered By
Shilling Yosemite Ranch Mariposa County, California Proudly Offered By 707 Merchant Street, Suite 100, Vacaville, Ca 95688 (707) 455-4444 Office (707) 455-0455 Fax www.californiaoutdoorproperties.com [email protected] BRE#01838294 Introduction Beautiful building site This 3680 +/- acre property is located in Mariposa County about 7 miles from Coulterville, CA . Coulterville is a small community that is a California historical site. The Hotel Jeffery, built in 1854 , entertain the likes of John Muir and President Teddy Roosevelt is still around. Yosemite is just 25 miles away and is America's first and most beautiful National Park. You can actual see Half Dome from the property. The Bay Area is just a little over 2 hours away and you can escape the traffic and stress and be on your ranch in no time. The ranch sits at a perfect elevation below the snow line and above the fog line. The ranch is fenced and cross fenced for livestock, with springs and ponds supplying year round water. You will never run out of things to do: raise livestock, horse back riding, hiking, hunting, vineyards and of course gold mining. This area has a rich mining history dating back to the early gold rush days. The gold mines in Mariposa county lie in three distinctive belts, The West Gold Belt, The East Gold Belt, and The Mother Lode Gold Belt. Shilling Yosemite Ranch lies in the richest area, the Mother Lode Gold Belt and includes three patented mining claims: The Sweetwater Lode, The Southern Cross Lode and The Alta Quartz Lode. -
150 Geologic Facts About California
California Geological Survey - 150th Anniversary 150 Geologic Facts about California California’s geology is varied and complex. The high mountains and broad valleys we see today were created over long periods of time by geologic processes such as fault movement, volcanism, sea level change, erosion and sedimentation. Below are 150 facts about the geology of California and the California Geological Survey (CGS). General Geology and Landforms 1 California has more than 800 different geologic units that provide a variety of rock types, mineral resources, geologic structures and spectacular scenery. 2 Both the highest and lowest elevations in the 48 contiguous states are in California, only 80 miles apart. The tallest mountain peak is Mt. Whitney at 14,496 feet; the lowest elevation in California and North America is in Death Valley at 282 feet below sea level. 3 California’s state mineral is gold. The Gold Rush of 1849 caused an influx of settlers and led to California becoming the 31st state in 1850. 4 California’s state rock is serpentine. It is apple-green to black in color and is often mottled with light and dark colors, similar to a snake. It is a metamorphic rock typically derived from iron- and magnesium-rich igneous rocks from the Earth’s mantle (the layer below the Earth’s crust). It is sometimes associated with fault zones and often has a greasy or silky luster and a soapy feel. 5 California’s state fossil is the saber-toothed cat. In California, the most abundant fossils of the saber-toothed cat are found at the La Brea Tar Pits in Los Angeles. -
Of Gold and Gravel: a Pictorial History of Mining Operations at Coal Creek
OF GOLD AND GRAVEL A Pictorial History of Mining Operations at Coal Creek and Woodchopper Creek, 1934–1938 Yukon-Charley Rivers National Preserve National Park Service Edited and Notes by Chris Allan OF GOLD AND GRAVEL A Pictorial History of Mining Operations at Coal Creek and Woodchopper Creek, 1934–1938 Yukon-Charley Rivers National Preserve Edited and Notes by Chris Allan 2021 Acknowledgments I would like to thank Lynn Johnson, the granddaughter of Walter Johnson who designed the Coal Creek and Woodchooper Creek dredges; Rachel Cohen of the Alaska and Polar Regions Collections & Archives; and Jeff Rasic, Adam Freeburg, Kris Fister, Brian Renninger, and Lynn Horvath who all helped with editing and photograph selection. For additional copies contact: Chris Allan National Park Service Fairbanks Administrative Center 4175 Geist Road Fairbanks, Alaska 99709 Printed in Fairbanks, Alaska Front Cover: View from the pilot house of the Coal Creek gold dredge showing the bucket line carrying gravel to be processed inside the machine. The bucket line could dig up to twenty-two feet below the surface. University of Alaska Fairbanks, Alaska & Polar Regions Collections and Archives, Stanton Patty Family Papers. Title Page Inset: A stock certificate for Gold Placers, Inc. signed by General Manager Ernest N. Patty, November 16, 1935. University of Alaska Fairbanks, Alaska & Polar Regions Collections and Archives, Stanton Patty Family Papers. Back Cover: Left to right: The mail carrier Adolph “Ed” Biederman, his son Charlie, daughter Doris, the trapper and miner George Beck, Ed’s son Horace, and Jack Welch, the proprietor of Woodchopper Roadhouse. The group is at Slaven’s Roadhouse on the banks of the Yukon River posing with a mammoth tusk recovered from a placer mining tunnel. -
93 Placer Tailings Are Features on the Historic-Period Mining Landscape
PAPERS ON HISTORICAL ARCHAEOLOGY 93 GGGOLDOLDOLD IN THETHETHE TAILINGSAILINGSAILINGS MICHAEL DAVID NEWLAND Recent field research of post-Gold Rush placer-mining operations along the Feather River suggests that placer tailings, the cleaned and processed rock and sediment waste of placer-mining operations, can contain important information about mining technique and landscape reconstruction. In addition, careful reconstruction of mining events can tie early mining claims with their mining operations. Two placer-mining sites, Spring Valley Gulch, worked in the 1860s-1870s, and the McCabe Creek Complex, worked in 1853-1860, both studied as part of the Oroville Relicensing Project, will be used as illustrations. lacer tailings are features on the historic-period mining landscape These three questions can be addressed using two sites as case that are typically ignored or recorded minimally, because studies: the Spring Valley Gulch complex and the McCabe Creek Presearchers think that either there is no information potential complex. there, or such features are too complex to address during field study. Placer tailings are found throughout the gold country of the west, and indeed around the world. Tailings are the bi-product of mining: the TWO CASE STUDIES: SPRING VALLEY GULCH AND MCCABE CREEK scraped, washed, or otherwise processed boulders, cobbles, and finer sediments left as a end result of mining; this paper focuses only on Spring Valley Gulch (CA-BUT-1872/H) placer mining and not on other forms of gold extraction. Spring Valley Gulch is filled with mining sites dating to the A lot has been said about tailings over the past two decades, and 1860s-1870s. -
Big Creek Mining Complex
Ah Heng Mining Complex A Malheur National Forest Virtual Tour Introduction: Types of Gold Mining Placer vs. Hard Rock (Quartz, Load) Mining There are several different ways to mine for gold. The following is a brief description of placer and hard rock mining. The remainder of this virtual tour focuses on the placer mining done by the Ah Heng Company at a leased mining claim near Big Creek. Placer Mining- using water to excavate, transport, and recover Hard Rock Mining- the underground excavation of lode deposits. A heavy minerals from alluvial deposits. These deposits consist of lode deposit is the original mineral occurrence within a fissure minerals that have eroded from their parent lode into a variety through native rock, also known as a vein or ledge. In order to access of natural contexts among the sedimentary formations. Placer these minerals, miners must excavate either a decline (ramp), vertical deposits are generally free from parent material and do not shaft, or an adit. These type of claims were a longer term investment require additional refinement when they are separated from because of the additional labor and equipment needed to extract the other sediments. and refine the ore and the need for transportation infrastructure to ship the refined ore to smelting facilities. Placer Mining 2. After gold was discovered through prospecting, more complex equipment and Technology techniques were employed to recover gold buried in the alluvial deposits Rocker – Long Toms a rocking box and Sluice which Boxes- allowed Trough-like recovery of 1. The first step in placer mining is boxes with gold with prospecting for rich gold deposits, usually water small flowing over with shovel, pick and . -
Mines of El Dorado County
by Doug Noble © 2002 Definitions Of Mining Terms:.........................................3 Burt Valley Mine............................................................13 Adams Gulch Mine........................................................4 Butler Pit........................................................................13 Agara Mine ...................................................................4 Calaveras Mine.............................................................13 Alabaster Cave Mine ....................................................4 Caledonia Mine..............................................................13 Alderson Mine...............................................................4 California-Bangor Slate Company Mine ........................13 Alhambra Mine..............................................................4 California Consolidated (Ibid, Tapioca) Mine.................13 Allen Dredge.................................................................5 California Jack Mine......................................................13 Alveoro Mine.................................................................5 California Slate Quarry .................................................14 Amelia Mine...................................................................5 Camelback (Voss) Mine................................................14 Argonaut Mine ..............................................................5 Carrie Hale Mine............................................................14 Badger Hill Mine -