DOCSLIB.ORG

Molybdenite in the Montezuma District of Central Colorado

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Molybdenite in the Montezuma District of Central Colorado GEOLOGICAL SURVEY CIRCULAR 704 Molybdenite in the Montezuma District of Central Colorado Molybdenite in the Montezuma District of Central Colorado By George J. Neuerburg, Theodore Botinelly, and John R. Watterson GEOLOGICAL SURVEY CIRCULAR 704 1974 United States Department of the Interior ROGERS C. B. MORTON, Secretary Geological Survey V. E. McKelvey, Director Free on application to the U.S. Geological Survey, National Center, Reston, Va. 22092 CONTENTS Page Page Abstract·------------------------------------------------------------------------- 1 Mineralogy and distribution - Continued Introduction·------------------------------------------------------------------· 1 MineralogY------------------------------------··--··----------····------ 11 Acknowledgments ...... ----··----------··----·--·····-··-----······ 1 Distribution of molybdenite in the district....... 13 GeologY----------------------------------··--------------------··--------------···· 1 SummarY-----·------·--·-----------------------·--------------··-----------···--· 18 Mineralogy and distribution of molybdenite............ 11 References cited·------------------------··---------------------····--------· 20 ILLUSTRATIONS Page FIGURE 1. Index map of central and western Colorado, showing the Montezuma district in relation to the Colorado mineral belt·-··----···----··-···-----------------------------·-----------------------··-·------·····---------···--·--·---····--··--------· 2 2. Map showing molybdenum deposits in relation to Tertiary stocks and gravity contours................ 2 3. Map showing principal geologic elements of the Montezuma district... ---------····----···--·······--··--······-·--·· 4 4. Maps showing petrography of the Montezuma stock.... ---·-------------------------------------···---------··-·---·----···-·--··-· 6 5. Photograph showing dilatancy differentiate of fine-grained aplite....... ---··-----···---·-····-··--------·--·-·········· 7 6. Map showing concentration of Precambrian Silver Plume Granite intrusives along the Monte- zuma shear zone ...... -----------------·-------------·--------------------·-··----····------------···---------------------····------------------------· 8 7. Diagrams showing alteration zoning of porphyry-metal deposits........ ---------···----····-------·········-----------·· 9 8. Maps showing pervasive alteration of the Montezuma stock. ............... ---··-····-·········-·--·······---··············· 10 9. Map showing areas of known silver-lead-zinc veins·---------------·-----·-·--····--·····-·----------··-----------------------···---- 12 10. Diagram illustrating the independence of pyrite and molybdenite abundances among 25 olocks of unaltered aplite scattered over a small mine dumP------------------------··-·---··---··-····------------------------- 13 11. Graphs showing molybdenite and pyrite abundance distributions among the three principal porphyritic varieties of quartz monzonite composing the Montezuma stock .... ---------···------------··· 14 12. Maps showing the distribution of molybdenite and pyrite in the Montezuma stock as blip sur- faces ....... -----------------------------··---------------···-----···-·--------------··------·--·-------------···---------------------···-------------------·-···· 15 13. Diagrams showing molybdenite, pyrite, and bismuth blip curves for drill core from the line of the Roberts Tu:p.nel access shaft---------------------------------------···------------····------···--·----··---···-------------------······ 16 14. Diagram showing molybdenite, pyrite, and bismuth blip curves for samples along the Roberts Tunnel in the western third of the Montezuma stock. ............... ---··-·········-·-··------·------···-·-·····--------- 16 15. Map showing the distribution of veins containing bismuth minerals .. ------··-·----·-··-------------------------·-··· 17 16. Map showing the bismuth blip surface for the Montezuma stock....... ---··-···--·····-····---·-···----····----····---· 18 17. Map showing the distribution of veins containing specularite·---------------·-··-···------------------------····---·····--· 19 TABLES Page TABLE 1. Principal rock types of the Montezuma stock .... ---··----------·-·--····------------····---------------------------------------------·-·· 3 2. Molybdenite and pyrite variances in eight igneous rocks according to sample area, rock type, alteration, and weight of analyzed fragments·---------------------------····----····--------------------····----····---------- 14 III Molybdenite in the Montezuma District of Central Colorado By George J. Neuerburg, Theodore Botinelly, and John R. WaHerson ABSTRACT provides evidence to help locate probable por­ The Montezuma mining district, in the Colorado min­ phyry-molybdenum deposits in the district. eral belt, is defined by an assemblage of porphyry, ore, and altered rocks that originated in the venting of a ACKNOWLEDGMENTS Tertiary batholith through weak structures in Pre­ cambrian rocks. The ore consists of silver-lead-zinc Information regarding the character of rocks veins clustered on the propylitic fringe of a geometri­ at depth in the Montezuma district was ob­ cally complex system of altered rocks, which is centered tained largely through the kindness of other on the intersection of the Oligocene Montezuma stock people, beginning with the many who pros­ with the Montezuma shear zone of Precambrian an­ pected and mined the district from 1864 to cestry. Alteration chemistry conforms to the standard porphyry-metal model but is developed around several date. John A. Thomas, of AMAX Exploration, small intrusives strung out along the shear zone and Inc., permitted us to examine much drill core is expressed as a mottled pattern, rather than as the from the Geneva Creek cirque. Douglas N. usual thick concentric zones centered on one large plug. Stevens, of Earth Sciences, Inc., permitted us The distribution of trace amounts of molybdenite is to sample core from near Webster Pass. These consistent with the postulate of molybdenite deposits in the district, but the mottled alteration pattern may cores and parts of the Roberts Tunnel collec­ signify small and scattered, possibly very deep, depos­ tion, obtained for the U.S. Geological Survey its. Disseminated molybdenite is essentially coextensive by C. S. Robinson, were of exceptional value in with altered rock and increases slightly in quantity characterizing the pervasive alteration of the toward the inner alteration zones. Two groups of molyb­ district. Molybdenite distribution at depth in denite veins, associated with phyllic and potassic altera­ the western third of the stock was determined tion, represent possible diffuse halos of molybdenite deposits. One group of veins resembles the Climax and from the Roberts Tunnel collection, Denver Henderson deposits but was seen only in a small and Water Board drill core in the U.S. Geological isolated area of outcrops. The second group of molyb­ Survey core library, and from data obtained by denite veins is in a bismuth-rich part of the Montezuma P. K. Theobald in his visits to the Roberts Tun­ stock and underlies an area of bismuth veins; this nel access shaft. The bismuth analyses sum­ group records the passage of contact metasomatic ore fluids. Another bismuth-rich area is in the southeast marized herein were made by Eric P. Welsch corner of the stock in a region of bismuth veins and of the U.S. Geological Survey. may indicate a third group of molybdenite veins. GEOLOGY INTRODUCTION The Montezuma district, situated along the Molybdenite occurs in trace amounts in the Continental Divide just south of Loveland Pass, rocks and ores of the Montezuma district. Mo­ includes. one of the clusters of porphyry, ore, lybdenite mineralization is assigned to the and altered rock composing the Colorado min­ Oligocene porphyry-ore association of the Colo­ eral belt (fig. 1). The clusters that have stock­ rado mineral belt (Tweto, 1968). This Colorado work molybdenite deposits (King and others, porphyry-ore association belongs to the remark­ 1973) are virtually contained by the -300 ably consistent and worldwide porphyry-metal milligal gravity contour of the central Colorado class of ore deposits. The pattern of molybde­ Rocky Mountains (fig. 2). The gravity low nite distribution in the Montezuma district probably closely outlines the long-hypothesized 1 109° 105° 104" 41° 40° ~ .. -o 'V ODENVER Ul~ lJ -p- Grand /~ ~ / Montezuma ELKf ~I district 0 Junction q MTlj.l :11 ../ WES~( i ( Area of ELK "'-) f'\ \ figure 2 MTS / /-- ~"'/ (~~ /~~ I I SAN JUAN I; MOUNTAINS f vI 37° 0 50 100 MILES I I I I I I I 0 50 100 150 KILOMETERS FIGURE 1. -Index map of central and western Colo­ 0 10 20 MILES rado, showing Montezuma district in relation to the Colorado mineral belt. 0 10 20 30 KILOMETERS EXPLANATION Molybdenum deposits--From King(l970), Bryant(l971), mineral-belt batholith (Crawford, 1924; Tweto and this study and Case, 1972), and coincides with an element • Disseminated deposits of molybdenum • Veins and other types of deposits of molybdenum of structural weakness of Precambrian ances­ Outcrop of Tertiary stocks--From Tweto and Sims(l963) try, expressed as zones of recurrent shearing --250- Gravity contours, in milligals-- From Behrendt and Bajwa (1972) (Tweto and Sims, 1963). The porphyry stocks, ore deposits, and al­ FIGURE 2.- Map showing molybdenum deposits in re­ tered rocks are cogenetic products of the under­ lation to Tertiary stocks and gravity contours. lying batholith, and they locate sites of venting of the batholith. The Colorado porphyry-ore
Load more

Recommended publications
  • 1 1. Species: Mountain Plover (Charadrius Montanus) 2. Status
    1. Species: Mountain Plover (Charadrius montanus) 2. Status: Table 1 summarizes the current status of this species or subspecies by various ranking entity and defines the meaning of the status. Table 1. Current status of Charadrius montanus Entity Status Status Definition NatureServe G3 Species is Vulnerable At moderate risk of extinction or elimination due to a fairly restricted range, relatively few populations or occurrences, recent and widespread declines, threats, or other factors. CNHP S2B Species is Imperiled At high risk of extinction or elimination due to restricted range, few populations or occurrences, steep declines, severe threats, or other factors. (B=Breeding) Colorado SGCN, Tier 1 Species of Greatest Conservation Need State List Status USDA Forest R2 Sensitive Region 2 Regional Forester’s Sensitive Species Service USDI FWSb BoCC Included in the USFWS Bird of Conservation Concern list a Colorado Natural Heritage Program. b US Department of Interior Fish and Wildlife Service. The 2012 U.S. Forest Service Planning Rule defines Species of Conservation Concern (SCC) as “a species, other than federally recognized threatened, endangered, proposed, or candidate species, that is known to occur in the plan area and for which the regional forester has determined that the best available scientific information indicates substantial concern about the species' capability to persist over the long-term in the plan area” (36 CFR 219.9). This overview was developed to summarize information relating to this species’ consideration to be listed as a SCC on the Rio Grande National Forest, and to aid in the development of plan components and monitoring objectives. 3. Taxonomy Genus/species Charadrius montanus is accepted as valid (ITIS 2015).
    [Show full text]
  • PEAK to PRAIRIE: BOTANICAL LANDSCAPES of the PIKES PEAK REGION Tass Kelso Dept of Biology Colorado College 2012
    !"#$%&'%!(#)()"*%+'&#,)-#.%.#,/0-#!"0%'1%&2"%!)$"0% !"#$%("3)',% &455%$6758% /69:%8;%+<878=>% -878?4@8%-8776=6% ABCA% Kelso-Peak to Prairie Biodiversity and Place: Landscape’s Coat of Many Colors Mountain peaks often capture our imaginations, spark our instincts to explore and conquer, or heighten our artistic senses. Mt. Olympus, mythological home of the Greek gods, Yosemite’s Half Dome, the ever-classic Matterhorn, Alaska’s Denali, and Colorado’s Pikes Peak all share the quality of compelling attraction that a charismatic alpine profile evokes. At the base of our peak along the confluence of two small, nondescript streams, Native Americans gathered thousands of years ago. Explorers, immigrants, city-visionaries and fortune-seekers arrived successively, all shaping in turn the region and communities that today spread from the flanks of Pikes Peak. From any vantage point along the Interstate 25 corridor, the Colorado plains, or the Arkansas River Valley escarpments, Pikes Peak looms as the dominant feature of a diverse “bioregion”, a geographical area with a distinct flora and fauna, that stretches from alpine tundra to desert grasslands. “Biodiversity” is shorthand for biological diversity: a term covering a broad array of contexts from the genetics of individual organisms to ecosystem interactions. The news tells us daily of ongoing threats from the loss of biodiversity on global and regional levels as humans extend their influence across the face of the earth and into its sustaining processes. On a regional level, biologists look for measures of biodiversity, celebrate when they find sites where those measures are high and mourn when they diminish; conservation organizations and in some cases, legal statutes, try to protect biodiversity, and communities often struggle to balance human needs for social infrastructure with desirable elements of the natural landscape.
    [Show full text]
  • Denudation History and Internal Structure of the Front Range and Wet Mountains, Colorado, Based on Apatite-Fission-Track Thermoc
    NEW MEXICO BUREAU OF GEOLOGY & MINERAL RESOURCES, BULLETIN 160, 2004 41 Denudation history and internal structure of the Front Range and Wet Mountains, Colorado, based on apatite­fission­track thermochronology 1 2 1Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801Shari A. Kelley and Charles E. Chapin 2New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801 Abstract An apatite fission­track (AFT) partial annealing zone (PAZ) that developed during Late Cretaceous time provides a structural datum for addressing questions concerning the timing and magnitude of denudation, as well as the structural style of Laramide deformation, in the Front Range and Wet Mountains of Colorado. AFT cooling ages are also used to estimate the magnitude and sense of dis­ placement across faults and to differentiate between exhumation and fault­generated topography. AFT ages at low elevationX along the eastern margin of the southern Front Range between Golden and Colorado Springs are from 100 to 270 Ma, and the mean track lengths are short (10–12.5 µm). Old AFT ages (> 100 Ma) are also found along the western margin of the Front Range along the Elkhorn thrust fault. In contrast AFT ages of 45–75 Ma and relatively long mean track lengths (12.5–14 µm) are common in the interior of the range. The AFT ages generally decrease across northwest­trending faults toward the center of the range. The base of a fossil PAZ, which separates AFT cooling ages of 45– 70 Ma at low elevations from AFT ages > 100 Ma at higher elevations, is exposed on the south side of Pikes Peak, on Mt.
    [Show full text]
  • Geochronology Database for Central Colorado
    Geochronology Database for Central Colorado Data Series 489 U.S. Department of the Interior U.S. Geological Survey Geochronology Database for Central Colorado By T.L. Klein, K.V. Evans, and E.H. DeWitt Data Series 489 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2010 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: T.L. Klein, K.V. Evans, and E.H. DeWitt, 2009, Geochronology database for central Colorado: U.S. Geological Survey Data Series 489, 13 p. iii Contents Abstract ...........................................................................................................................................................1 Introduction.....................................................................................................................................................1
    [Show full text]
  • Profiles of Colorado Roadless Areas
    PROFILES OF COLORADO ROADLESS AREAS Prepared by the USDA Forest Service, Rocky Mountain Region July 23, 2008 INTENTIONALLY LEFT BLANK 2 3 TABLE OF CONTENTS ARAPAHO-ROOSEVELT NATIONAL FOREST ......................................................................................................10 Bard Creek (23,000 acres) .......................................................................................................................................10 Byers Peak (10,200 acres)........................................................................................................................................12 Cache la Poudre Adjacent Area (3,200 acres)..........................................................................................................13 Cherokee Park (7,600 acres) ....................................................................................................................................14 Comanche Peak Adjacent Areas A - H (45,200 acres).............................................................................................15 Copper Mountain (13,500 acres) .............................................................................................................................19 Crosier Mountain (7,200 acres) ...............................................................................................................................20 Gold Run (6,600 acres) ............................................................................................................................................21
    [Show full text]
  • The Geologic Story of Colorado's Sangre De Cristo Range
    The Geologic Story of Colorado’s Sangre de Cristo Range Circular 1349 U.S. Department of the Interior U.S. Geological Survey Cover shows a landscape carved by glaciers. Front cover, Crestone Peak on left and the three summits of Kit Carson Mountain on right. Back cover, Humboldt Peak on left and Crestone Needle on right. Photograph by the author looking south from Mt. Adams. The Geologic Story of Colorado’s Sangre de Cristo Range By David A. Lindsey A description of the rocks and landscapes of the Sangre de Cristo Range and the forces that formed them. Circular 1349 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2010 This and other USGS information products are available at http://store.usgs.gov/ U.S. Geological Survey Box 25286, Denver Federal Center Denver, CO 80225 To learn about the USGS and its information products visit http://www.usgs.gov/ 1-888-ASK-USGS Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: Lindsey, D.A., 2010, The geologic story of Colorado’s Sangre de Cristo Range: U.S. Geological Survey Circular 1349, 14 p. iii Contents The Oldest Rocks ...........................................................................................................................................1
    [Show full text]
  • Isotopic Age Determinations, Unaltered and Hydrothermally Altered Igneous Rocks, North-Central Colorado Mineral Belt A.A
    Isotopic age determinations, unaltered and hydrothermally altered igneous rocks, north-central Colorado mineral belt A.A. Bookstrom, C.W. Naeser, and J.R. Shannon Isochron/West, Bulletin of Isotopic Geochronology, v. 49, pp. 13-20 Downloaded from: https://geoinfo.nmt.edu/publications/periodicals/isochronwest/home.cfml?Issue=49 Isochron/West was published at irregular intervals from 1971 to 1996. The journal was patterned after the journal Radiocarbon and covered isotopic age-dating (except carbon-14) on rocks and minerals from the Western Hemisphere. Initially, the geographic scope of papers was restricted to the western half of the United States, but was later expanded. The journal was sponsored and staffed by the New Mexico Bureau of Mines (now Geology) & Mineral Resources and the Nevada Bureau of Mines & Geology. All back-issue papers are available for free: https://geoinfo.nmt.edu/publications/periodicals/isochronwest This page is intentionally left blank to maintain order of facing pages. 13 ISOTOPIC AGE DETERMINATIONS, UNALTERED AND HYDROTHERMALLY ALTERED IGNEOUS ROCKS, NORTH-CENTRAL COLORADO MINERAL BELT ARTHUR A. BOOKSTROM 1805 Glen Ayr Dr., Lakewood, CO 80215 CHARLES W. NAESER U.S. Geological Survey, Denver, CO 80225 JAMES R. SHANNON Department of Geology, Colorado School of Mines, Golden, CO 80401 Monzonite and granodiorite intrusions of the Empire Fission-track age determinations were done in the fission- district are early Tertiary (65 Ma) in age, as dated by track laboratory of the U.S. Geological Survey in Denver, Simmons and Hedge (1978). Monzonite and granodiorite and at the University of Utah Research Institute. People intrusions of the Alma district have yielded isotopic ages who cooperated in this study include Mark Coolbaugh, ranging from 71 to 41 Ma (Bookstrom, in press).
    [Show full text]
  • Summits on the Air – ARM for USA - Colorado (WØC)
    Summits on the Air – ARM for USA - Colorado (WØC) Summits on the Air USA - Colorado (WØC) Association Reference Manual Document Reference S46.1 Issue number 3.2 Date of issue 15-June-2021 Participation start date 01-May-2010 Authorised Date: 15-June-2021 obo SOTA Management Team Association Manager Matt Schnizer KØMOS Summits-on-the-Air an original concept by G3WGV and developed with G3CWI Notice “Summits on the Air” SOTA and the SOTA logo are trademarks of the Programme. This document is copyright of the Programme. All other trademarks and copyrights referenced herein are acknowledged. Page 1 of 11 Document S46.1 V3.2 Summits on the Air – ARM for USA - Colorado (WØC) Change Control Date Version Details 01-May-10 1.0 First formal issue of this document 01-Aug-11 2.0 Updated Version including all qualified CO Peaks, North Dakota, and South Dakota Peaks 01-Dec-11 2.1 Corrections to document for consistency between sections. 31-Mar-14 2.2 Convert WØ to WØC for Colorado only Association. Remove South Dakota and North Dakota Regions. Minor grammatical changes. Clarification of SOTA Rule 3.7.3 “Final Access”. Matt Schnizer K0MOS becomes the new W0C Association Manager. 04/30/16 2.3 Updated Disclaimer Updated 2.0 Program Derivation: Changed prominence from 500 ft to 150m (492 ft) Updated 3.0 General information: Added valid FCC license Corrected conversion factor (ft to m) and recalculated all summits 1-Apr-2017 3.0 Acquired new Summit List from ListsofJohn.com: 64 new summits (37 for P500 ft to P150 m change and 27 new) and 3 deletes due to prom corrections.
    [Show full text]
  • Central Region Technical Attachment 93-01 the Front Range/Palmer
    AMS-73-0P - 95B O l **-rTiT.i-tc~,rg-rT LIBRARY JUN 18 2010 f CRH SSD Atmospf- JANUARY 1993 CENTRAL REGION TECHNICAL ATTACHMENT 93-01 THE FRONT RANGE/PALMER DIVIDE BLIZZARD OF 7 JANUARY 1992 Ron McQueen and Ray Wolf National Weather Service Forecast Office Denver, Colorado 1. Introduction A moderate intensity blizzard struck the eastern edge of the Colorado Front Range and northeast Palmer Divide on 7 January 1992. The storm produced up to 22 inches of snow with three to six foot drifts (including 14 inches of snow in twenty-four hours at the Weather Service Forecast Office in Denver (WSFO DEN), a record for January). This was a result of a rapidly intensifying eastward moving cyclone. Blizzard conditions were most pro­ nounced in a 30 to 40 mile wide band, mainly east of Interstate 25 from the Wyoming border south to the Palmer Divide (Figure 1). This storm also caused heavy snow in the Four Corners area on the 6th, and the Colorado mountains on the 6th and 7th. Widespread heavy snow on the 6th amounted to between three and eight inches in the Four Corners. Two day snowfall totals for the mountains ranged from 12 to 18 inches in the Southwest Mountains and between 8 and 25 inches in the Northern and Central Mountains. This storm provided an excellent opportunity for forecasters at WSFO Denver to use the Denver AWIPS Risk Reduction and Re­ quirements Evaluation (DARE) workstation to its fullest diagnos­ tic and forecasting capacities. The DARE workstation is the functional prototype AWIPS workstation.
    [Show full text]
  • Destination Colorado
    WELCOME WELCOME DESTINATION COLORVADO DESTINATION COLORADO Steamboat Springs Fort Collins Estes Loveland Park Greeley Longmont Northeast FRONT RANGE REGION: Northwest Granby Boulder Front Visit www.destinationcolorado.com for more information Winter Park Range BLACK HAWK, BOULDER, ESTES Beaver Black Hawk on all of our members. Keystone PARK, FORT COLLINS, GREELEY, Creek Vail Golden Aurora Palisade Snowmass Breckenridge Denver Colorado is a paradise for meeting planners and incentive buyers, combining the most magnificent natural beauty LONGMONT, LOVELAND Copper Mtn Grand Aspen Denver in the world with first-class accommodations, state-of-the-art meeting space and convenient access. We have North of Denver, this region combines some Junction of Colorado’s finest college communities with Buena Vista Colorado organized our 2018 Meeting Planner Guide into state regions, beginning with our Front Range just north of Denver Gateway Crested Butte Springs some of its most spectacular scenery. Boulder, Pueblo and ending with information on transportation in the state. We have included a map illustrating each of our Fort Collins and Greeley, home to the state’s regions and a brief descriptor of some of the features they represent. Rest assured, no matter where you plan finest public universities, also offer charming South Southwest Central your meeting in Colorado, all of our members can provide you with the type of quality and services you communities with an abundance of meeting space, dining, accommodations and activities. Telluride Southeast have grown to expect. Estes Park is situated in one of the state’s most spectacular backdrops, Rocky Mountain National Colorado is located in the western half of the United States and is easily accessible from both coasts.
    [Show full text]
  • HUD PD&R Housing Market Profile for Denver-Aurora-Lakewood, Colorado
    HUD PD&R Housing Market Profiles Denver-Aurora-Lakewood, Colorado Quick Facts About Denver-Aurora- Lakewood By Sam Young | As of January 1, 2015 Current sales market conditions: slightly tight. Current apartment market conditions: tight. Overview The Denver-Aurora-Lakewood (hereafter, Denver) metropolitan Forbes magazine ranked Denver the sixth area is in north-central Colorado, at the eastern edge of the Rocky fastest growing city in the United States during Mountains. Major industries include tourism, health care, telecom- 2015. Strong employment and population munications, and high-technology manufacturing. Leading em- growth contributed to the ranking. ployers include HealthONE LLC, CenturyLink, Inc., and Lockheed Martin Corporation, with approximately 8,350, 6,500, and 4,750 employees, respectively. As a regional center for federal govern- ment agencies, and with the city of Denver as the state capital, the metropolitan area also relies heavily on public-sector employ- ment, with more than 69,000 state and federal employees. • As of January 1, 2015, the estimated population in the met- ropolitan area was 2.77 million, reflecting an average annual increase of 47,600, or 1.8 percent, since July 2010. • Despite weaker economic and housing market conditions from mid-2005 through mid-2010, population growth remained rela- tively strong, averaging 40,900 people, or 1.7 percent, annually, partially because quality-of-life factors attract people to the met- ropolitan area. • Net in-migration averaged less than 40 percent of total pop- ulation growth from mid-2005 through mid-2010, which kept population growth at 1.7 percent annually. Since 2010, net in-migration has nearly doubled, to an average of 28,600 peo- ple, or 60 percent of population growth, annually as job growth increased dramatically after recovering from the effects of the national recession.
    [Show full text]
  • High Altitude Revegetation Workshop and Central Rockies Chapter of The
    High Altitude Revegetation Workshop and Central Rockies Chapter of the Society For Ecological Restoration 2015 Conference March 10-12, 2015 Fort Collins, Colorado Advertisements i ii Table of Contents Conference Organizing Committees ............................................................................................................... 1 Tuesday March 10, 2015. ................................................................................................................................... 2 8:00 – 12:00 Preconference Workshop – Learning to Adapt: Monitoring Throughout the Restoration Process (special registration event). ............................................................................... 2 1:00 Opening Remarks, Randy Mandel CeRSER and Mark Paschke HAR, Ballroom AB ............... 3 1:05 Welcome, John Hayes, Dean of the Warner College of Natural Resources, CSU ..................... 3 1:15 Keynote address: “Novel ecosystems – targets or turn-offs? Jim Harris, Cranfield University ................................................................................................................................................................... 3 1:50 – 3:10 Session 1: Novel Ecosystems, Moderated by Mark Paschke. ............................................ 4 3:30 – 4:50 Session 2: Complex Projects, Moderated by Randy Mandel. ............................................. 5 4:50 – 7:00 Poster Session / Mixer, Ballroom CD (Poster abstract start on page 27) ........................ 6 7:00 – 9:00 Student – Professional Mixer
    [Show full text]