DOCSLIB.ORG

Mineralassmtrprt.Pdf

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mineralassmtrprt.Pdf EXECUTIVE SUMMARY The Bureau of Land Management (BLM) Winnemucca Field Office (WFO) is in the process of preparing an overall Resource Management Plan (RMP) for the Field Office (FO). As part of the RMP revision process, the BLM is required to prepare a Mineral Assessment Report providing information regarding mineral occurrences and potential within the WFO RMP Planning Area (Planning Area). This report provides an intermediate level of detail for mineral assessment as prescribed in BLM Manual 3060 (BLM 1994). The information presented in this report will be summarized and incorporated into an Environmental Impact Statement (EIS) for the proposed RMP and into the final RMP. The geologic history of northern Nevada and the Winnemucca FO Planning Area (Planning Area) is very complex, and includes two major cycles of sedimentation (western and eastern facies sources), episodic thrust faulting, mountain building and associated intrusive and igneous activity. More recent geologic history includes a period of crustal extension that was accompanied by bimodal (rhyolite-basalt) volcanism, basin and range block-faulting, resulting in high-levels of shallow crustal heat flow. The regional and local geologic setting has been instrumental in the location of and significant potential for the numerous economic metallic mineral deposits in the Planning Area, as well as the significant potential for the development of economic geothermal resources. LOCATABLE MINERALS The Planning Area has a long history of mineral development dating back to the 1860s and contains some of the most famous gold and silver metal mining districts in the US, including: Battle Mountain, Potosi, Marigold, Lone Tree, Getchell, Pinson, Seven Troughs, Awakening, and Hog Ranch (Davis and Tingley, 1999; Peters and others, 1996; and Wallace and others, 2004). Locatable minerals historically or currently mined within the Planning Area include metallic minerals (i.e.: gold, silver copper, mercury, zinc, molybdenum, manganese, uranium, tungsten, etc.) and non-metallic minerals (i.e.: limestone, barite, gypsum, diatomaceous earth, sulfur, fluorspar and opals). Currently there are ten (10) large open pit gold / silver mines, and six (6) other industrial mineral mines in operation in the Planning Area. Over fifty (50) mining plans of operation and 102 notices are currently administered by the WFO. A total of 2,213 mining notices (as of Nov. 29, 2005) have been administered by the BLM since 1981 and nine (9) are current pending decisions. The US Geological Survey identifies more than 1,400 bedrock mines and prospects in the Planning Area, seventy eight percent of which occur within existing established historical mining districts (Sherlock and others, 1996). Mineral exploration particularly for gold is an ongoing enterprise in Nevada by both operators of existing mines and by other exploration companies. Exploration has been extremely active recently (2004-early 2006) as gold prices have sustained levels above $400/ounce, and exceeded $600/ounce in early 2006. Companies conducting exploration in Nevada in 2004 reported spending some $79.7 million in 2004 (Dreisner and Coyner, 2005). Exploration in large part takes place in areas near known mineral deposits and within historic districts; however, Final Mineral Assessment Report –Winnemucca Field Office, BLM September 2006 Page ES-i exploration is also conducted in other outlying areas that the mineral industry considers prospective for various reasons (Wallace and other, 2004). Nevada’s total mineral industry production was valued at $3.3 billion in 2004 and precious metal production accounted for about $3 billion of this total (Driesner and Coyner, 2005). Prospects for sustaining these production rates in the short run are excellent and also quite likely in the long run (15-20 years). Based on mining industry projections it appears that market conditions for gold will remain relatively consistent, with gold priced at sustainable levels in the $400+/ounce range. Within the next 10 years it is anticipated that 2-3 currently active mines will go into closure and be reclaimed. These mine closures would likely be offset with both new projects being developed and placed into production, and the expansion of existing mines. A significant increase in exploration and mining activity has occurred with increasing metal commodity prices, placing additional demands on permitting and regulatory compliance agencies. This increased activity has also increased the potential adverse effects on watershed and other resources in the planning area. Most of the effects are site specific and potential impacts are minimized by the requirement for environmental analysis during permitting of proposed exploration and mining activities. Other state and federal regulatory requirements include mitigation measures to reduce real or potential impacts, requirements for reclamation and long term closure planning. There are no large scale commercial placer operations currently operating in Nevada (Fitch 2003) and it is likely that most major placer deposits have already been discovered and developed in the past. Most modern placer mines operate under “Casual Use” criteria and involve individuals or clubs that mine at a small scale using little or no equipment other than hand tools and sluice boxes. Larger scale operations typically mine 60 to 150 ounces (1.7 to 4.3 kilograms) of gold per year under a Notice and are permitted to use mechanized equipment. These types of operations are often restricted and have mitigations in place to protect other resources. Site reclamation work is bonded by the responsible permitting agency to insure completion. The Planning Area should likely anticipate 10 operations operating under a Notice during any given year, with the actual number being a function of the price of gold. Gems and semi-precious stones will likely continue to be mined on a small scale in the Planning Area. Deposits are small, usually hand-operated as “pay-to-dig” operations, and great care must be taken when extracting the stones so as not to damage and devalue the pieces. Existing deposits will likely be extended and remain small with labor intensive mining methods. While pluton-related and epithermal deposits hosting gold and silver are commonly associated with metals other than gold and silver, the potential for development of these metals, such as antimony, beryllium, iron, lead, manganese, mercury, uranium, and zinc is low to very low. Potential for copper production is also low with the exception of moderate to good potential for further development of at least one massive sulfide copper deposit at the Big Mike Mine within the Planning Area. Final Mineral Assessment Report –Winnemucca Field Office, BLM September 2006 Page ES-ii There is no current production, nor has there been any significant historic production of molybdenum from the Planning Area, however, it seems quite likely that the Ashdown Property could be brought into production as a low-fluorine molybdenum porphyry system within the next few years. Other molybdenum deposits may be also developed over the next 15-20 years as well. There is a moderate potential for the development of tungsten deposits within the Planning Area. The price of tungsten (WO3) has increased significantly in the last few years and has stimulated the production of tungsten elsewhere in the world where deposits are larger and higher grade than those found in Nevada. It would seem reasonable that if prices were to remain high and demand increases somewhat, that some companies might be encouraged in attempting to bring some of the larger, higher grade deposits of the Planning Area into production. Locatable industrial mineral deposits of dolomite, gypsum, diatomite and perlite are currently mined within the planning area. Low to moderate potential exists for production of most locatable industrial minerals, however, potential is good for production of carbonate (limestone and dolomite), diatomate, and gypsum from the Planning Area where deposits are located near transportation corridors and are mineable by inexpensive open-cut methods. The Echo Canyon Limestone mine is scheduled to begin production in the near future and is located northeast of Lovelock, east of the Humboldt River and Interstate 80. SALEABLE MINERALS Saleable mineral extraction and use will increase along with increasing mining activity, commercial development, recreation activities, and private property development, especially along the Interstate 80 corridor within the Planning Area. The minerals program administers 65 active sales, 112 free-use permits and 168 mineral site rights-of way. Saleable mineral sites with a priority for use will likely include sand, gravel, and rock quarries located along State, County, and BLM managed roads. There is good potential and considerable demand for continued development of aggregate deposits in the Planning Area. Virtually all of the basins/valleys in the Planning Area have potential aggregate deposits but those deposits adjacent to their end uses or good transportation corridors will have the greatest development potential. There is good potential for new and continued development of existing clay deposits in the Planning Area. Mining of clay deposits was and is being conducted throughout the Planning Area. There is low potential for development of pumice and cinder deposits although there are a number of occurrences and former mines within the Planning Area. Currently, pumice deposits are not being mined
Load more

Recommended publications
  • The Economics of Mining Evolved More Favorably in Mexico Than Peru
    Created by Richard L. Garner 3/9/2007 1 MINING TRENDS IN THE NEW WORLD 1500-1810 "God or Gold?" That was the discussion question on an examination that I took many years ago when I started my studies in Latin American history. I do not recall how I answered the question. But the phrase has stuck in my mind ever since. And it has worked its way into much of the history written about the conquest and post-conquest periods, especially the Spanish conquests. From the initial conquests in the Caribbean and certainly after the conquests of Mexico and Peru the search for minerals became more intensive even as the Spanish Crown and its critics argued over religious goals. In the middle of the sixteenth century after major silver discoveries in Mexico and Peru the value of the output of the colonial mines jumped significantly from a few million pesos annually (mainly from gold) to several tens of millions. Perhaps “Gold” (mineral output) had not yet trumped “God” (religious conversion) on every level and in every region, but these discoveries altered the economic and financial equation: mining while not the largest sector in terms of value or labor would become the vehicle for acquiring and consolidating wealth. Until the late seventeenth century Spanish America was the New World’s principal miner; but then the discovery of gold in Brazil accorded it the ranking gold producer in the New World while Spanish American remained the ranking silver producer. The rise of mining altered fundamentally the course of history in the New World for the natives, the settlers, and the rulers and had no less of an effect on the rest of the world.
    [Show full text]
  • Lovelock-Cave-Back-Country-Byway
    Back Country Byways . An Invitation to Discover There is an axiom among seasoned travelers advising that the best way to get to know a new place is to get off the highway and visit the back roads, the side trails and the hidden, out-of-the-way corners where the true qualities wait to be discovered. The same axiom holds true for America’s public lands, the vast reaches of our nation that are all too often seen only from the windows of speeding cars or the tiny portholes of airliners. The Bureau of Land Management, America’s largest land managing agency, is providing an exciting opportunity for more Americans to get to know their lands by getting off the main roads for leisurely trips on a series of roads and trails being dedicated as Back Country Byways. The Back Country Byways Program, an outgrowth of the national Scenic Byways Program, is designed to encourage greater use of these existing back roads through greater public awareness. The system is BUREAUREAU OOFF LANDLAND MANMANAGEMENTGEMENT expected to expand to 100 roads when completed. In Nevada, each byway has a character and beauty of its own, taking travelers through scenery that is uniquely Nevadan, into historic areas that helped shape our state and near areas that have been largely untouched by man. They can see the multiple uses of their lands and come to a greater awareness of the need for the conservation and wise use of these resources. And all this can be accomplished at little cost to the taxpayer. Because the roads are already in place, only interpretive signs and limited facilities are needed to better serve the public.
    [Show full text]
  • Technical Report Getchell Project NI 43-101 Technical Report Premier Gold Mines Limited and I-80 Gold Corp
    AMC Mining Consultants (Canada) Ltd. BC0767129 200 Granville Street, Suite 202 Vancouver BC V6C 1S4 Canada T +1 604 669 0044 E [email protected] W amcconsultants.com Technical Report Getchell Project NI 43-101 Technical Report Premier Gold Mines Limited and i-80 Gold Corp Humboldt County, Nevada, USA In accordance with the requirements of National Instrument 43-101 “Standards of Disclosure for Mineral Projects” of the Canadian Securities Administrators Qualified Persons: D Nussipakynova, P.Geo. P Greenhill, FAusIMM (CP) AMC Project 720031 Effective date 23 July 2020 Report date 22 January 2021 Unearth a smarter way Getchell Project NI 43-101 Technical Report Premier Gold Mines Limited and i-80 Gold Corp 720031 1 Summary 1.1 Introduction This Technical Report (the Report) provides an update of the Mineral Resource estimates and metallurgy of the Mineral Resources identified within the Getchell Project (Property) located in Humboldt County, Nevada, USA. The Report has been prepared by AMC Mining Consultants (Canada) Ltd. (AMC) of Vancouver, Canada on behalf of Premier Gold Mines Limited / i-80 Gold Corp (i-80 or the Companies). On 10 August 2020, Premier entered into a definitive purchase agreement with affiliates of Waterton Global Resource Management, Inc. to acquire from Waterton all of the outstanding membership interests of Osgood Mining Company LLC (OMC). The Property comprises a number of property parcels which collectively encompass 2,545 acres in the Potosi mining district. The four-square miles of land contain all areas of past gold production and the area of the currently estimated Mineral Resource. This area includes the historical Pinson Mine.
    [Show full text]
  • Northern Paiute and Western Shoshone Land Use in Northern Nevada: a Class I Ethnographic/Ethnohistoric Overview
    U.S. DEPARTMENT OF THE INTERIOR Bureau of Land Management NEVADA NORTHERN PAIUTE AND WESTERN SHOSHONE LAND USE IN NORTHERN NEVADA: A CLASS I ETHNOGRAPHIC/ETHNOHISTORIC OVERVIEW Ginny Bengston CULTURAL RESOURCE SERIES NO. 12 2003 SWCA ENVIROHMENTAL CON..·S:.. .U LTt;NTS . iitew.a,e.El t:ti.r B'i!lt e.a:b ~f l-amd :Nf'arat:1.iern'.~nt N~:¥G~GI Sl$i~-'®'ffl'c~. P,rceP,GJ r.ei l l§y. SWGA.,,En:v,ir.e.m"me'Y-tfol I €on's.wlf.arats NORTHERN PAIUTE AND WESTERN SHOSHONE LAND USE IN NORTHERN NEVADA: A CLASS I ETHNOGRAPHIC/ETHNOHISTORIC OVERVIEW Submitted to BUREAU OF LAND MANAGEMENT Nevada State Office 1340 Financial Boulevard Reno, Nevada 89520-0008 Submitted by SWCA, INC. Environmental Consultants 5370 Kietzke Lane, Suite 205 Reno, Nevada 89511 (775) 826-1700 Prepared by Ginny Bengston SWCA Cultural Resources Report No. 02-551 December 16, 2002 TABLE OF CONTENTS List of Figures ................................................................v List of Tables .................................................................v List of Appendixes ............................................................ vi CHAPTER 1. INTRODUCTION .................................................1 CHAPTER 2. ETHNOGRAPHIC OVERVIEW .....................................4 Northern Paiute ............................................................4 Habitation Patterns .......................................................8 Subsistence .............................................................9 Burial Practices ........................................................11
    [Show full text]
  • RESULTS CONFIRM EXTENSION to Mcdermitt RESOURCE
    ASX RELEASE 5 March 2021 ASX: JRL RESULTS CONFIRM EXTENSION TO McDERMITT RESOURCE Assay results from MDRC012 confirm substantial thickness and continuity of lithium mineralisation from surface Remaining four drillhole results expected by mid-March 2021 Jindalee Resources Limited ( Jindalee , the Company ) is pleased to announce that assay results have now been received for 11 holes of the 15-hole program completed late in 2020 at the Company’s 100% owned McDermitt Lithium Project (US). The latest results for MDRC012 confirm substantial widths of lithium mineralisation from surface in the SE portion of the deposit including : 58.0m @ 1611 ppm Li from 1.5m including 12.2m @ 2617ppm Li 27.4m @ 1477 ppm Li from 88.9m Results from MDRC012, located approximately 500m SE of the nearest hole (MDRC011), support significant intercepts recently announced by Jindalee 5 with drilling successfully confirming and extending the geology and grade continuity of the lithium mineralisation at McDermitt (Figure 1). The density of drilling is expected to be adequate to extend the current Inferred Mineral Resource 1 and Exploration Target Range 1 and convert existing Inferred Mineral Resources to Indicated status ahead of a possible Scoping Study. Figure 1 – Schematic section showing significant intercepts through the McDermitt Project. McDermitt Lithium Project – Background In late 2019 Jindalee announced an Inferred Mineral Resource of 150Mt @ 2,000ppm Li (0.43% Li 2O) at 1,750ppm Li cut-off 1 had been estimated at McDermitt (refer Table 1, below): Cut Off Mass Grade Contained LCE (ppm Li) (Mt) (ppm Li) (Mt) 1,750 150 2,000 1.6 Table 1 – Summary of the maiden Inferred Mineral Resource The Mineral Resource was estimated using a cut-off grade of 1,750ppm Li, which is considered appropriate in the context of similar projects and based on an assessment of the likelihood of future economic extraction as required by the JORC (2012) Code.
    [Show full text]
  • Burning Man Geology Black Rock Desert.Pdf
    GEOLOGY OF THE BLACK ROCK DESERT By Cathy Busby Professor of Geology University of California Santa Barbara http://www.geol.ucsb.edu/faculty/busby BURNING MAN EARTH GUARDIANS PAVILION 2012 LEAVE NO TRACE Please come find me and Iʼll give you a personal tour of the posters! You are here! In one of the most amazing geologic wonderlands in the world! Fantastic rock exposure, spectacular geomorphic features, and a long history, including: 1. PreCambrian loss of our Australian neighbors by continental rifting, * 2. Paleozoic accretion of island volcanic chains like Japan (twice!), 3. Mesozoic compression and emplacement of a batholith, 4. Cenozoic stretching and volcanism, plus a mantle plume torching the base of the continent! Let’s start with what you can see on the playa and from the playa: the Neogene to Recent geology, which is the past ~23 million years (= Ma). Note: Recent = past 15,000 years http://www.terragalleria.com Then we’ll “build” the terrane you are standing on, beginning with a BILLION years ago, moving through the Paleozoic (old life, ~540-253 Ma), Mesozoic (age of dinosaurs, ~253-65 Ma)) and Cenozoic (age of mammals, ~65 -0 Ma). Neogene to Recent geology Black Rock Playa extends 100 miles, from Gerlach to the Jackson Mountains. The Black Rock Desert is divided into two arms by the Black Rock Range, and covers 1,000 square miles. Empire (south of Gerlach)has the U.S. Gypsum mine and drywall factory (brand name “Sheetrock”), and thereʼs an opal mine at base of Calico Mtns. Neogene to Recent geology BRP = The largest playa in North America “Playa” = a flat-bottomed depression, usually a dry lake bed 3,500ʼ asl in SW, 4,000ʼ asl in N Land speed record: 1997 - supersonic car, 766 MPH Runoff mainly from the Quinn River, which heads in Oregon ~150 miles north.
    [Show full text]
  • Thacker Pass Lithium Mine Final EIS, Appendix B, Mining Plan Of
    Final Environmental Impact Statement Thacker Pass Lithium Mine Project Appendix B Mining Plan of Operations This page intentionally left blank. Appendix B – Mining Plan of Operations APPENDIX B. MINING PLAN OF OPERATIONS Thacker Pass Lithium Mine Project B-1 Final Environmental Impact Statement Appendix B – Mining Plan of Operations This page intentionally left blank. B-2 Thacker Pass Lithium Mine Project Final Environmental Impact Statement Thacker Pass Project Proposed Plan of Operations and Reclamation Plan Permit Application July 2019 October 2019 - Revised Submitted to: Bureau of Land Management Nevada Division of Environmental Protection Winnemucca District Bureau of Mining Regulation and Reclamation Humboldt River Field Office 901 S Stewart Street, Suite 4001 5100 East Winnemucca Boulevard Carson City, Nevada 89701 Winnemucca, Nevada 89445 Submitted by: LithiumNevada Lithium Nevada Corp. 3685 Lakeside Drive Reno, Nevada 89509 Contact: Edward (Ted) Grandy, VP Legal and Regulatory Affairs Thacker Pass Project – Plan of Operations and Reclamation Plan LithiumNevada Summary Lithium Nevada Corp. (LNC), a wholly owned subsidiary of Lithium Americas Corp. (LAC), proposes to construct, operate, reclaim, and close an open pit lithium mining and processing operation, the Thacker Pass Project (Project), located on public lands in northern Humboldt County, Nevada. The surface and subsurface mineral estates associated with the Project are located on public lands administered by the Bureau of Land Management (BLM), Winnemucca District, and controlled by federal unpatented lode mining claims owned by LNC. LNC is submitting this Plan of Operations and Reclamation Plan (Plan) to develop the Project in accordance with BLM Surface Management Regulations under 43 Code of Federal Regulations (CFR) 3809, Surface Occupancy regulations under 43 CFR 3715, and Nevada reclamation regulations under Nevada Administrative Code (NAC) 519A.
    [Show full text]
  • Biostratigraphy of the Bilk Limestone (Permian), Northwestern Nevada
    Western Washington University Western CEDAR WWU Graduate School Collection WWU Graduate and Undergraduate Scholarship Spring 1972 Biostratigraphy of the Bilk Limestone (Permian), Northwestern Nevada Erich Thomas Western Washington University Follow this and additional works at: https://cedar.wwu.edu/wwuet Part of the Geology Commons Recommended Citation Thomas, Erich, "Biostratigraphy of the Bilk Limestone (Permian), Northwestern Nevada" (1972). WWU Graduate School Collection. 731. https://cedar.wwu.edu/wwuet/731 This Masters Thesis is brought to you for free and open access by the WWU Graduate and Undergraduate Scholarship at Western CEDAR. It has been accepted for inclusion in WWU Graduate School Collection by an authorized administrator of Western CEDAR. For more information, please contact [email protected]. BIOSTRATIGRAPHY OF THE BILK LIIffiSTONE (PERMIAN), NORTHWESTERN NEVADA A Thesis Presented to The Facvilty of Western Washington State College In Partial Fxilfillment of the Requirements for the Degree Master of Science ty Erich Thomas May 1972 BIOSTRATIGRAPHY OF THE BILK LB'fESTONE (PERMIAN), NORTHWESTERN NEVADA tiy Erich Thomas Accepted in Partial Completion of the Requirements for the Degree Master of Science Advisory Committee Chairman MASTER'S THESIS In presenting thisthesis in partial fulfillment of the requirements for a master's degree at Western Washington University, I grant to Western Washington University the non-exclusive royalty-free rightto archive, reproduce, distribute, and display the thesis in any and all forms, including electronic format, via any digital library mechanisms maintained by WWU. I represent and warrant this is my original work and does not infringe or violate any rights of others. I warrant that I have obtained written permissions from the owner of any third party copyrighted material included in these files.
    [Show full text]
  • Brueseke, M.E., W.K. Hart & M.T. Heizler, Diverse Mid-Miocene Silicic
    Bull Volcanol DOI 10.1007/s00445-007-0142-5 RESEARCH ARTICLE Diverse mid-Miocene silicic volcanism associated with the Yellowstone–Newberry thermal anomaly Matthew E. Brueseke & William K. Hart & Matthew T. Heizler Received: 1 February 2005 /Accepted: 8 March 2007 # Springer-Verlag 2007 Abstract The Santa Rosa–Calico volcanic field (SC) of primarily focused along its eastern and western margins. At northern Nevada is a complex, multi-vent mid-Miocene least five texturally distinct silicic units are found in the eruptive complex that formed in response to regional western Santa Rosa–Calico volcanic field, including abun- lithospheric extension and flood basalt volcanism. Santa dant lava flows, near vent deposits, and shallow intrusive Rosa–Calico volcanism initiated at ∼16.7 Ma, concurrent bodies. Similar physical features are found in the eastern with regional Steens–Columbia River flood basalt activity portion of the volcanic field where four physically distinct and is characterized by a complete compositional spectrum units are present. The western and eastern Santa Rosa– of basalt through high-silica rhyolite. To better understand Calico units are characterized by abundant macro- and the relationships between upwelling mafic magmatism, microscopic disequilibrium textures, reflecting a complex coeval extension, and magmatic system development on petrogenetic history. Additionally, unlike other mid-Mio- the Oregon Plateau we have conducted the first compre- cene Oregon Plateau volcanic fields (e.g. McDermitt), the hensive study of Santa Rosa–Calico silicic volcanism. Santa Rosa–Calico volcanic field is characterized by a Detailed stratigraphic-based field sampling and mapping paucity of caldera-forming volcanism. Only the Cold illustrate that silicic activity in this volcanic field was Springs tuff, which crops out across the central portion of the volcanic field, was caldera-derived.
    [Show full text]
  • Brxs R43.Pdf
    MINERAL RESOURCES OF THE KUMlVA PEAK 38-BV 60"OUADRANGLE INTRODUCTION Parallel Survey. Descriptions of mines and prospects within the auadranale were made bv HI! 11 91 51. Lincoln 11 9231. The Kumiva Peak 30' by 60' Quadrangle lies about 40 ~anderburg-(1936). ~vertdn11947). onh ham i1969); miles north of Reno in western Nevada. The southern and Johnson (1977). Descriptions of the geology of the boundary is the 40th parallel and the western boundary, Washoe County portion of the quadrangle were included in the 120th meridian, lies about % mile west of the Nevada- the work by Bonham (1969); Johnson (I9771 described California state line. Portions of Washoe and Pershing the geology of the Pershing County part of the quadrangle. Counties, the northern half of Pyramid Lake, and a large During 1984-85, the Nevada Bureau of Mines and part of the Pyramid Lake Indian Reservation ail lie within Geology conducted a mineral inventory of the Sonoma- this quadrangle. Gerlach Resource Area for the Bureau of Land Management The John Fremont end Kit Carson party traveled through and, as part of that project,many mines andprospects in the central portion of this area in early January 1844. The the Kumiva Peak 30' by 60' Quadrangle were examined Fremont party discovered and named Pyramid Lake and and sampled. Field data were collected by Jack Quade, passed along its eastern shore on their way south. The J. V. Tingley, R: B. Jones, and L. J. Garside. In 1986, earliest mining activity, gold and silver prospecting, began T. L. T. Grose reported on several prospects in the about 1670 in Cottonwood Canyon in the northern Fox southern part of the quadrangle and, in 1967, J.
    [Show full text]
  • Technical Report for the Rochester Mine Lovelock, Nevada, Usa
    TECHNICAL REPORT FOR THE ROCHESTER MINE LOVELOCK, NEVADA, USA NI 43-101 Technical Report – Updated Project Study Effective Date: December 31, 2014 Filing Date: February 18, 2015 Prepared by: Gregory D. Robinson, P.E. Kelly Lippoth, AIME Annette McFarland, P.E. Raul Mondragon, RM SME Dana Willis, RM SME Rochester Mine Lovelock, Nevada, USA NI 43-101 Technical Report February 18, 2015 Cautionary Statement on Forward-Looking Information This Technical Report contains forward-looking statements within the meaning of the U.S. Securities Act of 1933 and the U.S. Securities Exchange Act of 1934 (and the equivalent under Canadian securities laws), that are intended to be covered by the safe harbor created by such sections. Such forward-looking statements include, without limitation, statements regarding Coeur Mining, Inc.’s (Coeur’s) expectations for the Rochester Mine, including estimated capital requirements, expected production, cash costs and rates of return; mineral reserve and resource estimates; estimates of silver and gold grades, expected financial returns and costs; and other statements that are not historical facts. We have tried to identify these forward-looking statements by using words such as “may,” “might”, “will,” “expect,” “anticipate,” “believe,” “could,” “intend,” “plan,” “estimate” and similar expressions. Forward-looking statements address activities, events or developments that Coeur expects or anticipates will or may occur in the future, and are based on information currently available. Although Coeur believes that its
    [Show full text]
  • 4.5 Cultural Resources
    4.5 – Cultural Resources 4.5 Cultural Resources This section identifies cultural and paleontological resources along the IC Project Alignment, identifies applicable significance thresholds, assesses the IC Project’s impacts to these resources and their significance, and recommends measures to avoid or substantially reduce any effects found to be potentially significant. Cultural resources are defined as any object or specific location of past human activity, occupation, or use that is identifiable through historical documentation, inventory, or oral evidence. Cultural resources can be separated into three categories: archaeological, building/structural, and traditional resources. Archaeological resources include prehistoric and historic remains of human activity. Prehistoric resources can be composed of lithic scatters, ceramic scatters, quarries, habitation sites, temporary camps/rock rings, ceremonial sites, and trails. Historic-era resources are typically those that are 50 years or older. Historic archaeological resources can consist of structural remains (e.g., concrete foundations), historic objects (e.g., bottles and cans), features (e.g., refuse deposits or scatters), and sites (e.g., resources that contain one or more of the aforementioned categories). Built environment resources range from historic buildings to canals, historic roads and trails, bridges, ditches, cemeteries, and electrical infrastructure, such as transmission lines, substations, and generating facilities. A traditional cultural resource is a resource associated with the cultural practices, traditions, beliefs, lifeways, arts, crafts, or social institutions of a living community. They are rooted in a traditional community’s history and are important in maintaining the continuing cultural identity of the community. See Section 4.18, Tribal Cultural Resources, for a discussion on cultural resources of potential importance to California Native American tribes.
    [Show full text]