Gin Lin Mining Trail a Trai\ Through "Go\D Rush" History
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The La Grange Mine Site Historical Lesson Plan Grade 7
Teaching About Historic Places Lesson Plan Grade 7 The La Grange Mine: Changing the Landscape in the Quest for Gold Located on the slopes of the Trinity Mountains, the La Grange Mine serves as a silent reminder of what people will do in their quest for gold. Today, all that remains of this mine are some discarded things left by the miners. Only the scars on the land and the isolated items left behind can tell us the story of this once-great mine. The La Grange Mine story began in the late 1860s. It was during this time that the mountains west of Weaverville in Trinity County became a center for hydraulic gold mining. The gold found in this area was in such low amounts that special methods were needed to remove it from the ground. The method used was known as hydraulic mining. It involved washing the dirt with large amounts of water. In order to make sure that there was enough water for hydraulic mining to take place, in 1873 a group of local miners got together to form the Weaverville Ditch and Hydraulic Mining Company. This company was bought by Baron Ernest de La Grange for $250,000. Between 1893 and (Top photo shows La Grange Mine circa 1930s; Bottom photo shows the La Grange workers with gold 1915, the La Grange Mine became bars recovered from mine - California Department of Conservation, Division of Mines and Geology Library, and Trinity County Historical Society Archives Photos.) the largest hydraulic mine in California. By the early 20th the La Grange Mine produced $3,500,000 worth of gold. -
Mining's Toxic Legacy
Mining’s Toxic Legacy An Initiative to Address Mining Toxins in the Sierra Nevada Acknowledgements _____________________________ ______________________________________________________________________________________________________________ The Sierra Fund would like to thank Dr. Carrie Monohan, contributing author of this report, and Kyle Leach, lead technical advisor. Thanks as well to Dr. William M. Murphy, Dr. Dave Brown, and Professor Becky Damazo, RN, of California State University, Chico for their research into the human and environmental impacts of mining toxins, and to the graduate students who assisted them: Lowren C. McAmis and Melinda Montano, Gina Grayson, James Guichard, and Yvette Irons. Thanks to Malaika Bishop and Roberto Garcia for their hard work to engage community partners in this effort, and Terry Lowe and Anna Reynolds Trabucco for their editorial expertise. For production of this report we recognize Elizabeth “Izzy” Martin of The Sierra Fund for conceiving of and coordinating the overall Initiative and writing substantial portions of the document, Kerry Morse for editing, and Emily Rivenes for design and formatting. Many others were vital to the development of the report, especially the members of our Gold Ribbon Panel and our Government Science and Policy Advisors. We also thank the Rose Foundation for Communities and the Environment and The Abandoned Mine Alliance who provided funding to pay for a portion of the expenses in printing this report. Special thanks to Rebecca Solnit, whose article “Winged Mercury and -
Pike Law Geology Report by Colin Fowler
Geology of the Pike Law area. The Pike law mine site lies astride the Newbiggin to Westgate road, bounded on the east by Flushiemere beck and on the west by Westerbeck, with Broadley Hill at the NE corner being the highest point at 530m. Dunham describes the area: “The outcrop of the beds between the base of the Great Limestone and the Firestone on Pike Law, between Wester Beck and Flushiemere Beck, is traversed by a remarkable complex of veins.” (PP 243) Details of the geology have been given by Dunham, (1948 &1990); Bridges and Young, (2007); Bevins et al, (2010). Geological Survey of England and Wales 1:63,360/1:50,000 geological map series, New Series, sheet 25, Alston. The area has been worked by shaft, adit and hush, with 3 named areas of hush to the East of the road, Leonard’s Hush; Pikelaw Hush and Flask Hushes. To the West of the road, West End Hushes. There are a complex of leats and old dams forming reservoirs on both sides of the road, though non of them seem to have been able to hold sufficient water to enable hydraulic flushing alone to have created the hushes that we see. It is most likely to have been quarried and the water used for washing the mineral. “The production of lead concentrates from 1852 to 1891, when all work ceased was only 1725 tons.” (Dunham) “Surface evidence suggests that the area had been heavily worked prior to 1852, and what is recorded is the last gleanings of an old mining field” (Fairburn, A 2009) The figure given in Dunham may be optimistic, J. -
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. -
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 -
Federal Control of Hydraulic Mining
HYDRA ULIC MINING. FEDERAL CONTROL OF HYDRAULIC MINING. The question of the right and authority of the Federal Gov- ernment to control mining by the hydraulic process to any extent has recently become interesting and important, particularly in the State of California, by reason of the efforts recently made by the United States authorities to enjoin gravel mining there, until the miner shall have submitted to the jurisdiction of a commission composed of engineers of the United States army appointed by the President. Hydraulic mining, of itself, is and always has been recog- nized as a legitimate industry not subject to interference by the courts, except when it invaded the property rights of others. It may be-well to here observe, that hydraulic mining, as it is now and for more than thirty years last past has been conducted and understood in the mining regions of the western part of our country, is a process or mode of gold mining, by which hills, rocks, banks and other forms of deposits, composed largely of auriferous earth, are mined and removed from their position by means of large streams of water, which by great pressure are forced through pipes terminating in nozzles generally known as little giants or monitors. The water is discharged from these nozzles with great force against these bodies of earth, which are first frequently shattered or broken up by blasts of powder, and softened by streams of running water flowing at their base, loosening and tending to disintegrate them before they are fur- ther disintegrated and swept away by the great streams of water which are hurled upon them by the little giants or monitors. -
The Truth Behind California's Gold Rush
A Golden Myth: The Truth Behind California's Gold Rush Eric Rapps McGill University 2 The California Gold Rush of 1848 was one of the most transformational events in American history. In terms of America’s demographics, California became one of the most attractive destinations for Chinese, French, and Latin American immigrants, in addition to the 250,000 American migrants who moved there in search of gold.1 The abundance of gold in California and the economic contribution that gold mining made to the American economy in the second half of the nineteenth century were the main reasons why California earned statehood after only three years as a territory.2 From a social history perspective, Californians developed an identity based on materialism because their sole motivation for moving out west had been to get rich off of gold—the ultimate symbol of wealth.3 However, popular romanticism of the Gold Rush overlooks the environmental impacts of the event. Not only did the hydraulic mining associated with the Gold Rush destroy some of California’s most important water sources, but the mining and dredging that went along with it led to the deforestation of significant portions of California’s landscape as well. While it seemed that America’s major corporations at the time were willing to sacrifice the environment for financial gain, the Southern Pacific Transportation Company played an important role in promoting environmental regulations. It was largely thanks to their activism that the federal government adopted legislation to preserve sites like Yosemite, Sequoia, and the Sierra National Forest, which successfully prevented mining companies from further damaging California’s landscape. -
CALIFORNIA GOLD RUSH PREOPENING California Gold Rush
CALIFORNIA GOLD RUSH PREOPENING California Gold Rush OCTOBER 1999 CALIFORNIA GOLD RUSH PREOPENING DEN PACK ACTIVITIES PACK GOLD RUSH DAY Have each den adopt a mining town name. Many towns and mining camps in California’s Gold Country had colorful names. There were places called Sorefinger, Flea Valley, Poverty Flat (which was near Rich Gulch), Skunk Gulch, and Rattlesnake Diggings. Boys in each den can come up with an outrageous name for their den! They can make up a story behind the name. Have a competition between mining camps. Give gold nuggets (gold-painted rocks) as prizes. Carry prize in a nugget pouch (see Crafts section). For possible games, please see the Games section. Sing some Gold Rush songs (see Songs section). As a treat serve Cheese Puff “gold nuggets” or try some of the recipes in the Cubs in the Kitchen section. For more suggestions see “Gold Rush” in the Cub Scout Leader How-to Book , pp. 9- 21 to 9-23. FIELD TRIPS--Please see the Theme Related section in July. GOLD RUSH AND HALLOWEEN How about combining these two as a part of a den meeting? Spin a tale about a haunted mine or a ghost town. CALIFORNIA GOLD RUSH James Marshall worked for John Augustus Sutter on building a sawmill on the South Fork of the American River near the area which is now the town of Coloma. On January 24, 1848, he was inspecting a millrace or canal for the sawmill. There he spotted a glittering yellow pebble, no bigger than his thumbnail. Gold, thought Marshall, or maybe iron pyrite, which looks like gold but is more brittle. -
The Gold Rush of 1849 and the Consequences - Homework
The Gold Rush of 1849 and the Consequences - Homework Give two inferences you can make from this illustration about the Gold Rush in California in 1849. The Gold Rush of 1849 and the Consequences - Homework Another group to go west were the ‘forty-niners’ – gold miners seeking wealth after the discovery of gold in the foothills of the Sierra Nevada. Prior to the discovery of gold, only 5,000 people had used the trail to head west. From 1849 onwards, tens of thousands used the trail in the hope of finding gold. Thousands more came by ship, especially from China. A rebellion and a famine there were push factors in making people leave. The population of California rocketed to nearly 250,000 by 1852. Date Population Feb 1849 54 Jan 1850 791 Dec 1850 4,000 Dec 1851 6,500 Dec 1852 25,000 Estimated Chinese Population figures for California Gold Ingots this size and weight was what every Panning for Gold in the streams of California prospector wanted to find! could yield much smaller sized pieces. Soon all the surface gold had gone and proper mining companies moved in to mine much deeper below ground to find gold. This meant individuals were very Some people only found small Most found nothing at all…. unlikely to ‘strike it flecks of gold. lucky’ after the early 1850s. The Gold Rush of 1849 and the Consequences - Homework The early mining settlements were just camps, they later developed into towns. They were often full of disappointed miners who had failed to make their fortunes. -
Deep Storage of Contaminated Hydraulic Mining Sediment Along the Lower Yuba River, California
Nakamura, TK, et al. 2018. Remains of the 19th Century: Deep storage of contaminated hydraulic mining sediment along the Lower Yuba River, California. Elem Sci Anth, 6: 70. DOI: https://doi.org/10.1525/elementa.333 RESEARCH ARTICLE Remains of the 19th Century: Deep storage of contaminated hydraulic mining sediment along the Lower Yuba River, California Tyler K. Nakamura*, Michael Bliss Singer†,‡ and Emmanuel J. Gabet* Since the onset of hydraulic gold mining in California’s Sierra Nevada foothills in 1852, the environmental damage caused by displacement and storage of hydraulic mining sediment (HMS) has been a significant ecological problem downstream. Large volumes of mercury-laden HMS from the Yuba River watershed were deposited within the river corridor, creating the anthropogenic Yuba Fan. However, there are outstanding uncertainties about how much HMS is still contained within this fan. To quantify the deep storage of HMS in the Yuba Fan, we analyzed mercury concentrations of sediment samples collected from borings and outcrops at multiple depths. The mercury concentrations served as chemostratigraphic markers to identify the contacts between the HMS and underlying pre-mining deposits. The HMS had mercury con- centrations at least ten-fold higher than pre-mining deposits. Analysis of the lower Yuba Fan’s volume suggests that approximately 8.1 × 107 m3 of HMS was deposited within the study area between 1852 and 1999, representing ~32% of the original Yuba Fan delivered by 19th Century hydraulic gold mining. Our estimate of the mercury mass contained within this region is 6.7 × 103 kg, which is several orders of magnitude smaller than what was estimated to have been lost to the mining process.