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Golden Horn, East Face
AAC Publications Golden Horn, East Face Washington, North Cascades On a Friday evening in June, Jason Schilling and I hiked in to explore the unclimbed east face of Golden Horn (8,366’), just north of Washington Pass on the eastern slope of the North Cascades. Fred Beckey and company made the first ascent of Golden Horn via the Southwest Route in 1946, then returned in 1958 to ascend the north face. Around the corner, Gordy Skoog and Jim Walseth climbed the Northeast Arête (III 5.8) in 1979. Gordy and his brothers, Carl and Lowell, returned with a film crew a year later to create an episode for KOMO-TV’s Exploration Northwest, called “The Goldenhorn Pinnacle.” Despite this colorful history, the peak’s 1,000’ east face had never seen an ascent, in part because it was rumored to be chossy. Eight years ago, I scrambled the Southwest Route with my wife, Arun, to sneak a peek for myself. Jason and I approached up Swamp Creek to reach Snowy Lakes, a popular camp spot off the Pacific Crest Trail. The next day we scrambled up the ridge and dropped east via a snow couloir, a straightforward descent with crampons and axe. We hit our stride en route, and I enjoyed leading the route’s technical 5.10+ third pitch, the crux, on good rock. The heat of the day hit us as Jason led the fourth pitch, which quickly turned into the day’s true crux, an expanding crack with poor protection and disintegrating holds (5.10 R). We rationed our remaining water and navigated up intermittent cracks (5.8–5.10). -
Late Orogenic Mafic Magmatism in the North Cascades, Washington
Late orogenic mafic magmatism in the North Cascades, Washington: Petrology and tectonic setting of the Skymo layered intrusion Donna L. Whitney1,, Jeffrey H. Tepper2, Marc M. Hirschmann3 and Hugh A. Hurlow4 1 Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA 2 Department of Geology, University of Puget Sound, Tacoma, Washington 98416, USA 3 Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA 4 Utah Geological Survey, Salt Lake City, Utah 84114, USA Correspondence: E-mail: [email protected] The Skymo Complex in the North Cascades, Washington, is a layered mafic intrusion within the Ross Lake fault zone, a major orogen-parallel structure at the eastern margin of the Cascades crystalline core. The complex is composed dominantly of troctolite and gabbro, both with inclusions of primitive olivine gabbro. Low-pressure minerals in the metasedimentary contact aureole and early crystallization of olivine + plagioclase in the mafic rocks indicate the intrusion was emplaced at shallow depths (<12 km). The Skymo rocks have trace-element characteristics of arc magmas, but the association of Mg-rich olivine (Fo88–80) with relatively sodic plagioclase (An75–60) and the Al/Ti ratios of clinopyroxene are atypical of arc gabbros and more characteristic of rift-related gabbros. A Sm-Nd isochron indicates crystallization in the early Tertiary (ca. 50 Ma), coeval with the nearby Golden Horn alkaline granite. Mantle melting to produce Skymo magma likely occurred in a mantle wedge with a long history of arc magmatism. The Skymo mafic complex and the Golden Horn granite were emplaced during regional extension and collapse of the North Cascades orogen and represent the end of large-scale magmatism in the North Cascades continental arc. -
Notice Concerning Copyright Restrictions
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used for any commercial purpose. Users may not otherwise copy, reproduce, retransmit, distribute, publish, commercially exploit or otherwise transfer any material. The copyright law of the United States (Title 17, United States Code) governs the making of photocopies or other reproductions of copyrighted material. Under certain conditions specified in the law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specific conditions is that the photocopy or reproduction is not to be "used for any purpose other than private study, scholarship, or research." If a user makes a request for, or later uses, a photocopy or reproduction for purposes in excess of "fair use," that user may be liable for copyright infringement. This institution reserves the right to refuse to accept a copying order if, in its judgment, fulfillment of the order would involve violation of copyright law. 1 g 6 •19 GEOLOGICAL SURVEY RESEARCH 1968 QUARTZ DIORITE-QUARTZ MONZONITE AND GRANITE PLUTONS OF THE PASAYTEN RIVER AREA, WASHINGTON- PETROLOGY, AGE, AND EMPLACEMENT By R. W. TABOR, J. C. ENGELS; and M. H. STAATZ, Menlo Park, Calif.; Denver, Colo. ibstract.-Quartz diorite to granite plutons intrude Lower of plutonic igneous and metamorphic rocks. On the Cretaceous sedimentary and volcanic rocks lying between two blocks of metamorphic and granitoid rocks. As indicated by west is the core of the North Cascade crystalline block, K-Ar dates, the large Pasayten and Rock Creek dikes were and on the east is the Okanogan Highlands crystalline emplaced about 86 m.y. -
1968 Mountaineer Outings
The Mountaineer The Mountaineer 1969 Cover Photo: Mount Shuksan, near north boundary North Cascades National Park-Lee Mann Entered as second-class matter, April 8, 1922, at Post Office, Seattle, Wash., under the Act of March 3, 1879. Published monthly and semi-monthly during June by The Mountaineers, P.O. Box 122, Seattle, Washington 98111. Clubroom is at 7191h Pike Street, Seattle. Subscription price monthly Bulletin and Annual, $5.00 per year. EDITORIAL STAFF: Alice Thorn, editor; Loretta Slat er, Betty Manning. Material and photographs should be submitted to The Mountaineers, at above address, before Novem ber 1, 1969, for consideration. Photographs should be black and white glossy prints, 5x7, with caption and photographer's name on back. Manuscripts should be typed double-spaced and include writer's name, address and phone number. foreword Since the North Cascades National Park was indubi tably the event of this past year, this issue of The Mountaineer attempts to record aspects of that event. Many other magazines and groups have celebrated by now, of course, but hopefully we have managed to avoid total redundancy. Probably there will be few outward signs of the new management in the park this summer. A great deal of thinking and planning is in progress as the Park Serv ice shapes its policies and plans developments. The North Cross-State highway, while accessible by four wheel vehicle, is by no means fully open to the public yet. So, visitors and hikers are unlikely to "see" the changeover to park status right away. But the first articles in this annual reveal both the thinking and work which led to the park, and the think ing which must now be done about how the park is to be used. -
Structure and Emplacement of the Eocene Golden Horn Batholith, North Cascades, Washington
San Jose State University SJSU ScholarWorks Master's Theses Master's Theses and Graduate Research Spring 2018 Structure and Emplacement of the Eocene Golden Horn Batholith, North Cascades, Washington Christopher Scudder San Jose State University Follow this and additional works at: https://scholarworks.sjsu.edu/etd_theses Recommended Citation Scudder, Christopher, "Structure and Emplacement of the Eocene Golden Horn Batholith, North Cascades, Washington" (2018). Master's Theses. 4919. DOI: https://doi.org/10.31979/etd.p6p4-am45 https://scholarworks.sjsu.edu/etd_theses/4919 This Thesis is brought to you for free and open access by the Master's Theses and Graduate Research at SJSU ScholarWorks. It has been accepted for inclusion in Master's Theses by an authorized administrator of SJSU ScholarWorks. For more information, please contact [email protected]. STRUCTURE AND EMPLACEMENT OF THE EOCENE GOLDEN HORN BATHOLITH, NORTH CASCADES, WASHINGTON A Thesis Presented to The Faculty of the Department of Geology San José State University In Partial Fulfillment of the Requirement for the Degree Master of Science by Christopher A. Scudder May 2018 © 2018 Christopher A. Scudder ALL RIGHTS RESERVED The Designated Thesis Committee Approves the Thesis Titled STRUCTURE AND EMPLACEMENT OF THE EOCENE GOLDEN HORN BATHOLITH, NORTH CASCADES, WASHINGTON by Christopher A. Scudder APPROVED FOR THE DEPARTMENT OF GEOLOGY SAN JOSÉ STATE UNIVERSITY May 2018 Dr. Robert Miller Department of Geology Dr. Ellen Metzger Department of Geology Dr. Jonathan Miller Department of Geology ABSTRACT STRUCTURE AND EMPLACEMENT OF THE EOCENE GOLDEN HORN BATHOLITH, NORTH CASCADES, WASHINGTON By Christopher A. Scudder The 48 Ma Golden Horn batholith is a ~310 km2, shallow intrusion constructed of sub-horizontal sheets in the crystalline core of the North Cascades of Washington. -
Geologic Map of Washington - Northwest Quadrant
GEOLOGIC MAP OF WASHINGTON - NORTHWEST QUADRANT by JOE D. DRAGOVICH, ROBERT L. LOGAN, HENRY W. SCHASSE, TIMOTHY J. WALSH, WILLIAM S. LINGLEY, JR., DAVID K . NORMAN, WENDY J. GERSTEL, THOMAS J. LAPEN, J. ERIC SCHUSTER, AND KAREN D. MEYERS WASHINGTON DIVISION Of GEOLOGY AND EARTH RESOURCES GEOLOGIC MAP GM-50 2002 •• WASHINGTON STATE DEPARTMENTOF 4 r Natural Resources Doug Sutherland· Commissioner of Pubhc Lands Division ol Geology and Earth Resources Ron Telssera, Slate Geologist WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Ron Teissere, State Geologist David K. Norman, Assistant State Geologist GEOLOGIC MAP OF WASHINGTON NORTHWEST QUADRANT by Joe D. Dragovich, Robert L. Logan, Henry W. Schasse, Timothy J. Walsh, William S. Lingley, Jr., David K. Norman, Wendy J. Gerstel, Thomas J. Lapen, J. Eric Schuster, and Karen D. Meyers This publication is dedicated to Rowland W. Tabor, U.S. Geological Survey, retired, in recognition and appreciation of his fundamental contributions to geologic mapping and geologic understanding in the Cascade Range and Olympic Mountains. WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES GEOLOGIC MAP GM-50 2002 Envelope photo: View to the northeast from Hurricane Ridge in the Olympic Mountains across the eastern Strait of Juan de Fuca to the northern Cascade Range. The Dungeness River lowland, capped by late Pleistocene glacial sedi ments, is in the center foreground. Holocene Dungeness Spit is in the lower left foreground. Fidalgo Island and Mount Erie, composed of Jurassic intrusive and Jurassic to Cretaceous sedimentary rocks of the Fidalgo Complex, are visible as the first high point of land directly across the strait from Dungeness Spit. -
Washington Geology
11,1 V ::::, 0 WASHINGTON 11,1 VOL.25.N0.4 DECEMBER 1997 GEo·~ loG~ I I OLYMPIC PENINSULA ISSUE I Modern and ancient cold seeps on the Pacific Coast, p. 3 I Evidence for Quaternary tectonism along the Washington coast, p 14 I Investigations on the active Canyon River fault, p. 21 WASHINGTON STATE DEPARTMENTOF I Eocene megafossils from the Needles-Gray Wolf Lithic Assemblage, p. 25 I Geologic mapping and landslide inventory, p. 30 Natural Resources Also Jennifer M . Belcher- Commissioner of Public Lands I Trees ring in 1700 as year of huge Northwest earthquake, p. 40 I Rapid earthquake notification in the Pacific Northwest, p. 33 I First record of cycad leaves from the Eocene Republic flora, p. 37 I Museum specialists visit Republic's fossil site, p. 38 WASHINGTON Update on the Crown Jewel Mine GEOLOGY Vol. 25, No. 4 Raymond Lasmanis, State Geologist December 1997 Washington State Department of Natural Resources Division of Geology and Earth Resources Washington Geology (ISSN 1058-2134) is published four times each PO Box 47007, Olympia, WA 98504-7007 year by the Washington State Department of Natu.ral Resources, Divi sion of Geology a.nd Eart.h Resources. This publication is free upon re quest. The Division also publishes bulletins, information circulars, reports of investigations, geologic maps, and open-file reports. A list of s noted in my previous columns on this subject, the Crown these publications will be sent upon request. A Jewel is one of the significant major new gold mining projects in the U.S. The deposit is on Buckhorn Mountain east DIVISION OF GEOLOGY AND EARTH RESOURCES of Chesaw in Okanogan County. -
GEOLOGY a M Niixrnrail MINING DISTRICT, IDITAROD B-4 AND
GEOLOGY AmNIIXrnRAIL MINING DISTRICT, IDITAROD B-4 AND EASTERN B-5 QUADRANGLES, SOUTHWESTERN ALASKA By Thomas K. Bundtzen, Marti L. Miller, Gregory M. Laird, and Katherine F. Bull Professional Report 97 Prepared in cooperation with U.S, Geological Survey and Doyon Limited Published by STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL & GEOPHYSICAL SURVEYS Alaska Department of NATURAL Spring 1992 RESOURCES GEOLOGY AND MINERAL RESOURCES OF IDITAROD MINING DISTRICT, IDITAROD IB-4 AND EASTERN B-5 QUADRANGLES, SOUTHWESTERN ALASKA By Thomas K. Bundtzen, Marti L. Miller, Gregory M. Laird, and Katherine F. Bull Prepared in cooperation with U.S. Geological Survey and Doyon Limited Dbcovery Camp, Otter Creek Valley, circa 1913. Photo courtesy ofilorothy Loftus Collection, University ofAlaska Fairbanks Archives. Cover: Beaton and Donnelly (left) and Riley Investment Company (light) Professional Report 97 dredges in operation on adjoining claims near the mouth ofBlack Creek Division of Geological & during the 1916 season. The two companies could not initially re,rolve a dkpure concerning the lacation of a claim boundaiy. At onepoitlt the Geophysical Surveys bucket lines were only 6fr apart. The Beaton and Donnelly D~edge beganmining up Black Creekluter in theseason. Photocourtesy of John Fairbanks, Alaska Mbcovich. Spring 1992 Richard E. Fullerton was born on May 17, 1921, in the Iditarod-Flat district and passed away in Anchorage July 29, 1990 after a brief battle with cancer. Both he and his brother John placer mined for a half century in southwest Alaska. Like many family mining enterprises, the Fullterton operation began small. They started on Flat Creek with limited mechanized equipment consisting of second-hand tractors and simple sluicing devices. -
Intermediate-Climbs-Guide-1.Pdf
Table of Conte TABLE OF CONTENTS Preface.......................................................................1 Triumph NE Ridge.....................................47 Privately Organized Intermediate Climbs ...................2 Vayu NW Ridge.........................................48 Intermediate Climbs List.............................................3 Vesper N Face..............................................49 Rock Climbs ..........................................................3 Wedge Mtn NW Rib ...................................50 Ice Climbs..............................................................4 Whitechuck SW Face.................................51 Mountaineering Climbs..........................................5 Intermediate Mountaineering Climbs........................52 Water Ice Climbs...................................................6 Brothers Brothers Traverse........................53 Intermediate Climbs Selected Season Windows........6 Dome Peak Dome Traverse.......................54 Guidelines for Low Impact Climbing...........................8 Glacier Peak Scimitar Gl..............................55 Intermediate Rock Climbs ..........................................9 Goode SW Couloir.......................................56 Argonaut NW Arete.....................................10 Kaleetan N Ridge .......................................57 Athelstan Moonraker Arete................11 Rainier Fuhrer Finger....................................58 Blackcomb Pk DOA Buttress.....................11 Rainier Gibralter Ledge.................................59 -
Overcoming Addiction in the Mountains Post-Surgery Summits
WWW.MOUNTAINEERS.ORG WINTER 2018 • VOLUME 112 • NO. 1 MountaineerEXPLORE • LEARN • CONSERVE in this issue: Overcoming Addiction in the Mountains From Getting High to Getting High Post-Surgery Summits The Resilience of Body and Brain The Search for Eldorado An Adaptive Climber Finds Her Summit tableofcontents Winter 2018 » Volume 112 » Number 1 Features The Mountaineers enriches lives and communities by helping people explore, conserve, learn about, and enjoy 20 Overcoming Addiction in the Mountains the lands and waters of the Pacific Northwest and beyond. From Getting High to Getting High 24 Post-Surgery Summits The Resilience of Body and Brain 29 Celebrating Cancer Freedom An Adventure in the North Cascades 30 The Search for Eldorado An Adaptive Climber Finds Her Summit Columns 7 MEMBER HIGHLIGHT 20 Khrum Kashan 8 PEAK FITNESS Ankle Mobility for Agility in Winter Sports 10 YOUTH OUTSIDE Where Are They Now? 12 VOICES HEARD Urban Speed Hiking 13 IMPACT GIVING Keep Calm and Learn to Climb 14 OUTSIDE INSIGHT 24 Leadership on the Water 16 TRAIL TALK Invasion of the Modern Body Snatchers 18 VOICES HEARD Life as a City Girl Gone Green 32 BOOKMARKS The Climbers 34 CONSERVATION CURRENTS The Many Facets of the Public Lands Heist 37 RETRO REWIND The Evolution of Freedom 40 NATURES WAY Has “Glacial Pace” Lost its Meaning? 51 LAST WORD 30 Resilience Discover The Mountaineers If you are thinking of joining, or have joined and aren’t sure where to star, why not set a date to Meet The Mountaineers? Check the Mountaineer uses: Branching Out section of the magazine for times and locations of CLEAR informational meetings at each of our seven branches. -
Good As Gold Golden Horn in the North Cascades Offers a Treasure Trove of Climbing, Skiing and Hiking
www.wta.org September 2008 » Washington Trails On Trail Northwest Explorer » Good as Gold Golden Horn in the North Cascades offers a treasure trove of climbing, skiing and hiking Golden Horn. Alpinists seeking the premier ber, when the first major storm blows in a fresh Mount Hardy, in the mountain climbing area in Washington state go coat of snow. Golden Horn region there. Spring skiers looking for sunshine and The geology here is fascinating. The Golden of the North Cas- fine telemark powder go there. Photographers Horn country consists of a relatively young cades. Pinnacles of seeking fall colors go there. Hikers yearning for intrusion of granodiorite, formed locally some granite here attract remote, wind-rippled tarns go there. Located in forty-eight million years ago, with pink and hikers and climb- the Okanogan region just footsteps away from white feldspars plainly visible. The chemistry ers from around the the North Cascades Highway, the Golden Horn of the rock differs significantly from surround- world. granite country offers a premier destination ing plutons such as the much darker and visibly Photo by Geoffrey Sandine for just about any kind of outdoor enthusiast. pockmarked granites of the nearby Black Peak Here’s how you can go there too. batholith. Local weathering and frost wedging Location and geology both contribute to the have created some spectacular rock formations attractions of Golden Horn. The area is situated within the Golden Horn. Early Winters, Liberty east of the Cascade crest and offers many more Bell and the Wine Spires offer some of the most days of sunshine than other parts of the North aesthetic multi-pitch rock climbing routes in the Cascades. -
Washington Trails Jul+Aug 2011
Trail Work Myth-Busting, p.12 Maps You Need, p.33 Trappers Peak, p.51 WASHINGTON TRAILS July + August 2011 » A Publication of Washington Trails Association www.wta.org » $4.50 Head to the Crest Hike the Pacific Crest Trail for stellar views and soul repair INSIDE PCT Feats and Firsts Trail Angels Trail Magic Plus, How to Tell Better Tales Make Fish Tacos in the Backcountry This Month’s Cover » Photo by Karl Forsgaard Hiker Greg Jacoby amidst lupines and » Table of Contents bistort on the Pacific Crest Trail near White Pass July+August 2011 Volume 47, Issue 4 News + Views Backcountry The Front Desk » Craig McKibben The Gear Closet » Susan Ashlock, Why we need the PCT, even if we never Adam Scroggins hike it.» p.4 Navigate to the right map.» p.33 Family-friendly camping gear.» p.35 The Signpost » Lace Thornberg What motivates a PCT thru-hiker?» p.5 Sage Advice » Chris Wall How to tell spell-binding tales.» p.38 Trail Talk » Reader survey results and a Q&A session Trail Eats » Sarah Kirkconnell Dinner for two trailside.» with search and rescue.» p.6 p.40 Hiking News » 12Susan Elderkin Anniversaries and road closures.» p.8 Take a Hike WTA at Work Day Hikes and Overnights » Suggested hikes statewide.» p.41 Trail Work » Diane Bedell We take a pulaski to our favorite trail main- Nature on Trail » Sylvia Feder tenance myths.» p.12 22 You’ve seen krummholz before, but did you know what it was?» Action for Trails » Jonathan Guzzo, p.49 Ryan Ojerio A legislative session look back.» p.16 A Walk on the Wild Side » Why the Dark Divide goes too often unex- Elizabeth Lunney plored.» p.17 The essence of trail magic.» p.50 Membership News » Kara Chin Featured Landscape » Buff Black Hike-a-Thon—it’s on!» p.20 Why you really must visit Trappers Peak.» Heidi Walker p.51 On Trail Special Feature » All about the Pacific Crest Trail Best bets for a day or weekend.» p.22 PCT personalities.» 24 p.25 The PCT across a lifetime.» p.28 The PCT’s bold trendsetters.» p.31 Volunteer Vacations on the crest.» p.32 Find WTA online at www.wta.org.