SCREE Mountaineering Club of Alaska September 2012 Volume 55 Number 9
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Ecological Subsections of Glacier Bay National Park & Preserve, Sitka National Historic Park, Klondike Gold Rush National Historic Park
ECOLOGICAL SUBSECTIONS OF GLACIER BAY NATIONAL PARK & PRESERVE, SITKA NATIONAL HISTORIC PARK, KLONDIKE GOLD RUSH NATIONAL HISTORIC PARK Mapping and Delineation by: Gregory Nowacki, Michael Shephard, William Pawuk, Gary Fisher, James Baichtal, David Brew, Evert Kissinger and Terry Brock, USDA Forest Service Photographs by: USDA Forest Service Alaska Region Inventory and Monitoring Program 2525 Gambell Anchorage, Alaska 99503 Alaska Region Inventory & Monitoring Program 2525 Gambell Street, Anchorage, Alaska 99503 (907) 257-2488 Fax (907) 264-5428 Ecological Subsections of Glacier Bay National Park & Preserve Klondike Gold Rush National Historic Park Sitka National Historic Park 2001 Excerpts from Ecological Subsections of Southeast Alaska and Neighboring Areas of Canada Gregory Nowacki, Michael Shephard, William Pawuk, Gary Fisher, James Baichtal, David Brew, Evert Kissinger and Terry Brock USDA Forest Service, Alaska Region Technical Publication R10-TP-75 October 2001 Table of Contents TABLE OF CONTENTS ..............................................................................1 ECOLOGICAL SUBSECTION DELINEATION CRITERIA AND MAPPING..2 HIERARCHICAL ARRANGEMENT AND FINAL CORRECTION..................4 GLACIER BAY NATIONAL PARK AND PRESERVE ...................................1 Icefields...................................................................................................1 SAINT ELIAS—FAIRWEATHER .....................................................................1 Recently Deglaciated Areas .................................................................3 -
Geologic Maps of the Eastern Alaska Range, Alaska, (44 Quadrangles, 1:63360 Scale)
Report of Investigations 2015-6 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units by Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner Southeastern Tanana Basin Southern Yukon–Tanana Upland and Terrane Delta River Granite Jarvis Mountain Aurora Peak Creek Terrane Hines Creek Fault Black Rapids Glacier Jarvis Creek Glacier Subterrane - Southern Yukon–Tanana Terrane Windy Terrane Denali Denali Fault Fault East Susitna Canwell Batholith Glacier Maclaren Glacier McCallum Creek- Metamorhic Belt Meteor Peak Slate Creek Thrust Broxson Gulch Fault Thrust Rainbow Mountain Slana River Subterrane, Wrangellia Terrane Phelan Delta Creek River Highway Slana River Subterrane, Wrangellia Terrane Published by STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL & GEOPHYSICAL SURVEYS 2015 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner COVER: View toward the north across the eastern Alaska Range and into the southern Yukon–Tanana Upland highlighting geologic, structural, and geomorphic features. View is across the central Mount Hayes Quadrangle and is centered on the Delta River, Richardson Highway, and Trans-Alaska Pipeline System (TAPS). Major geologic features, from south to north, are: (1) the Slana River Subterrane, Wrangellia Terrane; (2) the Maclaren Terrane containing the Maclaren Glacier Metamorphic Belt to the south and the East Susitna Batholith to the north; (3) the Windy Terrane; (4) the Aurora Peak Terrane; and (5) the Jarvis Creek Glacier Subterrane of the Yukon–Tanana Terrane. -
Southcentral Alaska Stock
Revised: April 2014 NORTHERN SEA OTTER (Enhydra lutris kenyoni): Southcentral Alaska Stock STOCK DEFINITION AND GEOGRAPHIC RANGE Sea otters occur in nearshore coastal waters of the U.S. along the North Pacific Rim from the Aleutian Islands to California. The species is most commonly observed within the 40-meter (approximately 12.2 feet [ft]) depth contour because the animals require frequent access to benthic foraging habitat in subtidal and intertidal zones (Reidman and Estes 1990). Sea otters are not migratory and generally do not disperse over long distances, although movements of tens of kilometers (km) (tens of miles [mi]) are common (Garshelis and Garshelis 1984). Annual home range sizes of adult sea otters are relatively small, with male territories ranging from 4 to 11 square kilometers (km2) (approximately 10.5 to 28.5 square miles[mi2]) and adult female home ranges from a few to 24 km2 (approximately 62 mi2) (Garshelis and Garshelis 1984; Ralls et al. 1988; Jameson 1989). Due to their benthic foraging, sea otter distribution is largely limited by their ability to dive to the sea floor (Bodkin et al. 2004). 1 Figure 1. Approximate distribution and stock boundaries of northern sea otters in Alaska waters (shaded area). The spatial scale at which sea otter populations are managed remains an important, although largely unexplored issue (Bodkin and Ballachey 2010) deserving further study. Bodkin and Ballachey (2010) used models of sea otter mortality to show that range-wide reductions and extirpations during the commercial fur trade of the 18th and 19th centuries occurred not simply because of excessive harvest, but because the harvest was not allocated proportional to the abundance and distribution of sea otters. -
Harvard Mountaineering 3
HARVARD MOUNTAINEERING 1931·1932 THE HARVARD MOUNTAINEERING CLUB CAMBRIDGE, MASS. ~I I ' HARVARD MOUNTAINEERING 1931-1932 THE HARVARD MOUNTAINEERING CLUB CAMBRIDGE, MASS . THE ASCENT OF MOUNT FAIRWEATHER by ALLEN CARPE We were returning from the expedition to Mount Logan in 1925. Homeward bound, our ship throbbed lazily across the Gulf of Alaska toward Cape Spencer. Between reefs of low fog we saw the frozen monolith of St. Elias, rising as it were sheer out of the water, its foothills and the plain of the Malaspina Glacier hidden behind the visible sphere of the sea. Clouds shrouded the heights of the Fairweather Range as we entered Icy Strait and touched at Port Althorp for a cargo of salmon; but I felt then the challenge of this peak which was now perhaps the outstanding un climbed mOUlitain in America, lower but steeper than St. Elias, and standing closer to tidewater than any other summit of comparable height in the world. Dr. William Sargent Ladd proved a kindred spirit, and in the early summer of 1926 We two, with Andrew Taylor, made an attempt on the mountain. Favored by exceptional weather, we reached a height of 9,000 feet but turned back Photo by Bradford Washburn when a great cleft intervened between the but tresses we had climbed and the northwest ridge Mount Fairweather from the Coast Range at 2000 feet of the peak. Our base was Lituya Bay, a beau (Arrows mark 5000 and 9000-foot camps) tiful harbor twenty miles below Cape Fair- s camp at the base of the south face of Mount Fair weather; we were able to land near the foot of the r weather, at 5,000 feet. -
P1616 Text-Only PDF File
A Geologic Guide to Wrangell–Saint Elias National Park and Preserve, Alaska A Tectonic Collage of Northbound Terranes By Gary R. Winkler1 With contributions by Edward M. MacKevett, Jr.,2 George Plafker,3 Donald H. Richter,4 Danny S. Rosenkrans,5 and Henry R. Schmoll1 Introduction region—his explorations of Malaspina Glacier and Mt. St. Elias—characterized the vast mountains and glaciers whose realms he invaded with a sense of astonishment. His descrip Wrangell–Saint Elias National Park and Preserve (fig. tions are filled with superlatives. In the ensuing 100+ years, 6), the largest unit in the U.S. National Park System, earth scientists have learned much more about the geologic encompasses nearly 13.2 million acres of geological won evolution of the parklands, but the possibility of astonishment derments. Furthermore, its geologic makeup is shared with still is with us as we unravel the results of continuing tectonic contiguous Tetlin National Wildlife Refuge in Alaska, Kluane processes along the south-central Alaska continental margin. National Park and Game Sanctuary in the Yukon Territory, the Russell’s superlatives are justified: Wrangell–Saint Elias Alsek-Tatshenshini Provincial Park in British Columbia, the is, indeed, an awesome collage of geologic terranes. Most Cordova district of Chugach National Forest and the Yakutat wonderful has been the continuing discovery that the disparate district of Tongass National Forest, and Glacier Bay National terranes are, like us, invaders of a sort with unique trajectories Park and Preserve at the north end of Alaska’s panhan and timelines marking their northward journeys to arrive in dle—shared landscapes of awesome dimensions and classic today’s parklands. -
Unalaska Hazard Mitigation Plan 2018
Unalaska, Alaska Multi-Jurisdictional Hazard Mitigation Plan Update April 2018 Prepared for: City of Unalaska and Qawalangin Tribe of Unalaska City of Unalaska Hazard Mitigation Plan THIS PAGE LEFT BLANK INTENTIONALLY ii City of Unalaska Hazard Mitigation Plan Table of Contents 1. Introduction .......................................................................................................... 1-1 1.1 Hazard Mitigation Planning ..................................................................... 1-1 1.2 Grant Programs with Mitigation Plan Requirements ............................... 1-1 1.2.1 HMA Unified Programs ............................................................... 1-2 2. Community Description ....................................................................................... 2-1 2.1 Location, Geography, and History ........................................................... 2-1 2.2 Demographics .......................................................................................... 2-3 2.3 Economy .................................................................................................. 2-4 3. Planning Process .................................................................................................. 3-1 3.1 Planning Process Overview ..................................................................... 3-1 3.2 Hazard Mitigation Planning Team ........................................................... 3-3 3.3 Public Involvement & Opportunities for Interested Parties to participate ................................................................................................ -
Historic Retreat of Grand Pacific and Melbern Glaciers, Saint Elias
Journal of Glaciology, Vol. 39, No. 133, 1993 Historic retreat of Grand Pacific and Melbern Glaciers, Saint Elias Mountains, Canada: an analogue f or decay of the Cordilleran ice s h eet at the end of the Pleistocene? JOHN J. CLAGUE Geological Survf)l of Canada, West Pender Street, Vancouver, British Columbia V6B lRB, Canada, and Institute for Quaternary Research, Simon Fraser Universiry, Burnaby, British Columbia V5A IS6, Canada S. G. EVANS Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario KIA OEB, Canada ABSTRACT. Grand Pacific and Melbern Glaciers, two of the largest valley glaciers in British Columbia, have decreased over 50% in volume in the last few 3 hundred years (total ice loss = 250-300km ). Melbern Glacier has thinned 300- 600 m and retreated 15 km during this period; about 7 km of this retreat occurred between the mid-1970s and 1987, accompanied by the formation of one of the largest, presently existing, ice-dammed lakes on Earth. Grand Pacific Glacier, which terminates in Tarr Inlet at the British Columbia- Alaska boundary, retreated 24 km between 1879 and 1912. This rapid deglaciation has destabilized adjacent mountain slopes and produced spectacular ice-marginal land forms . The sediments and land forms produced by historic deglaciation in Melbern- Grand Pacific valley are comparable, both in style and scale, to those associated with the decay of the Cordilleran ice sheet at the end of the Pleistocene (c. 14-10 ka BP). Rates of historic and terminal Pleistocene deglaciation also may be comparable. INTRODUCTION one-half of the observed rise in sea level in the 20th century and that more than one-third of this meltwater Most glaciers in mountainous regions of the world have has come from glaciers in the mountains bordering the receded substantially during the last lOO years, probably Gulf of Alaska. -
Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, Tmospherica Composition and Volcanism in the North Pacific Region
University of New Hampshire University of New Hampshire Scholars' Repository Earth Sciences Scholarship Earth Sciences 1-17-2014 Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, tmosphericA Composition and Volcanism in the North Pacific Region Christian Zdanowicz Geological Survey of Canada David Fisher Geological Survey of Canada Jocelyne Bourgeois Geological Survey of Canada Mike Demuth Geological Survey of Canada James Zheng Geological Survey of Canada See next page for additional authors Follow this and additional works at: https://scholars.unh.edu/earthsci_facpub Recommended Citation Zdanowicz C, D Fisher, J Bourgeois, M Demuth, J Zheng, P Mayewski, K Kreutz, E Osterberg, K Yalcin, C Wake, EJ Steig, D Froese, K Goto-Azuma (2014) Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, tmosphericA Composition and Volcanism in the North Pacific Region. ARCTIC 67 (Kluane Lake Research Station 50th Anniversary Issue), 35-57. This Article is brought to you for free and open access by the Earth Sciences at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Earth Sciences Scholarship by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. Authors Christian Zdanowicz, David Fisher, Jocelyne Bourgeois, Mike Demuth, James Zheng, Paul A. Mayewski, K Kreutz, Erich Osterberg, Kaplan Yalcin, Cameron P. Wake, Eric J. Steig, Duane Froese, and Kumiko Goto- Azuma This article is available at University of New Hampshire Scholars' Repository: https://scholars.unh.edu/ earthsci_facpub/514 ARCTIC VOL. 67, SUPPL. 1 (2014) P. 35 – 57 http://dx.doi.org/10.14430/arctic4352 Ice Cores from the St. -
A, Index Map of the St. Elias Mountains of Alaska and Canada Showing the Glacierized Areas (Index Map Modi- Fied from Field, 1975A)
Figure 100.—A, Index map of the St. Elias Mountains of Alaska and Canada showing the glacierized areas (index map modi- fied from Field, 1975a). B, Enlargement of NOAA Advanced Very High Resolution Radiometer (AVHRR) image mosaic of the St. Elias Mountains in summer 1995. National Oceanic and Atmospheric Administration image from Mike Fleming, USGS, EROS Data Center, Alaska Science Center, Anchorage, Alaska. K122 SATELLITE IMAGE ATLAS OF GLACIERS OF THE WORLD St. Elias Mountains Introduction Much of the St. Elias Mountains, a 750×180-km mountain system, strad- dles the Alaskan-Canadian border, paralleling the coastline of the northern Gulf of Alaska; about two-thirds of the mountain system is located within Alaska (figs. 1, 100). In both Alaska and Canada, this complex system of mountain ranges along their common border is sometimes referred to as the Icefield Ranges. In Canada, the Icefield Ranges extend from the Province of British Columbia into the Yukon Territory. The Alaskan St. Elias Mountains extend northwest from Lynn Canal, Chilkat Inlet, and Chilkat River on the east; to Cross Sound and Icy Strait on the southeast; to the divide between Waxell Ridge and Barkley Ridge and the western end of the Robinson Moun- tains on the southwest; to Juniper Island, the central Bagley Icefield, the eastern wall of the valley of Tana Glacier, and Tana River on the west; and to Chitistone River and White River on the north and northwest. The boundar- ies presented here are different from Orth’s (1967) description. Several of Orth’s descriptions of the limits of adjacent features and the descriptions of the St. -
Alaska Natural Heritage Program National Park Service Alaska
GLACIER BAY NATIONAL PARK AND PRESERVE VASCULAR PLANT INVENTORY GLACIER BAY NATIONAL PARK AND PRESERVE VASCULAR PLANT INVENTORY FINAL TECHNICAL REPORT Matthew L. Carlson, Keith Boggs, Robert Lipkin, & Julie A. Michaelson Alaska Natural Heritage Program Environment and Natural Resources Institute University of Alaska Anchorage 707 A Street Anchorage, Alaska 99501 National Park Service Alaska Region Inventory & Monitoring Program NPS Report : April 2004 Cooperative Agreement No. 1443CA991000013 Funding Source: National Park Service, Inventory & Monitoring Program 1 GLACIER BAY NATIONAL PARK AND PRESERVE VASCULAR PLANT INVENTORY ABSTRACT In 2001 and 2003 the Alaska Natural Heritage Program (AKNHP) conducted vascular plant field inventories in Glacier Bay National Park and Preserve in accordance with a cooperative agreement with the National Park Service. The primary goal was to document greater than 90% of the vascular plant species expected to occur within the park and significantly improve our understanding of current species distributions. The inventory targeted diverse habitat types and poorly-sampled areas. The AKNHP staff visited eight diverse ecogeographic regions and sampled intensively within these regions from late June to mid-August, 2001 and late June to early July in 2003. A total of 555 specimens were collected, recorded, pressed, and curated. Of the 333 individual taxa, 172 are new records for the park and an additional 44 represent verifications of previously unverified reports. A number of finds were significant range extensions or taxa of conservation concern. Collections were made of four globally restricted species: Botrychium ascendens (G2G3-S2 AKNHP rank), Platanthera chorisiana (G3-S3), Eleocharis kamtschatica (G4-S2S3), and Salix setchelliana (G4-S3). A number of collections were made of species which are very rare in Alaska, but more widespread in western North America, such as Agoseris aurantiaca, A. -
Chugach Access Plan
CHUGACH ACCESS PLAN Public Hearing Draft July 2012 Chugach Access Plan Public Hearing Draft July 2012 Municipality of Anchorage With Alaska Department of Natural Resources Division of Parks and Outdoor Recreation 1 Table of Contents 2 3 INTRODUCTION .................................................................................................................... 1 4 Background and Overview ................................................................................................. 1 5 Purpose and Scope .............................................................................................................. 2 6 Project Goal ........................................................................................................................ 2 7 Objectives ........................................................................................................................... 2 8 PLANNING EFFORT AND PROCESS .................................................................................. 3 9 Planning Process ................................................................................................................. 3 10 Planning Effort and Criteria for Access Recommendations ............................................... 4 11 How This Plan Relates to Other Plans or Regulatory Systems .......................................... 5 12 ISSUES ..................................................................................................................................... 6 13 Funding Constraints ........................................................................................................... -
Icy Strait Ly
Akwe Lake 138°0'0"W 137°0'0"W 136°0'0"W Doame River McConnell Ridge White Thunder Ridge Van Horn Ridge Grand Plateau Glacier Rice, Mount Clear Creek Boundary Peak 161Forde, Mount Casement Glacier Glacier Pass SPB Minnesota Ridge Watson, Mount Red Mountain 59°0'0"N SPB Tarr Inlet Boundary Peak 162Turner, Mount SPB Sentinel Peak Burroughs Glacier 59°0'0"N SPB Nunatak, The Abdallah, Mount Elder, Mount Romer Glacier Bruce Hills Westdahl Point Howling Valley SPB Boundary PeakRoot, Mount Stump Cove Nunatak Cove Plateau Glacier Snow Dome Berg Mountain Margerie Glacier Sealers IslandGoose Cove Triangle Island Curtis Hills Girdled Glacier Rendu Inlet Wordie, Mount Queen Inlet Rowlee Point Forest Creek Wachusett Inlet Topeka Glacier Russell Island Granite Canyon McLeod, Point Sea Otter Glacier Hunter CoveMuir Inlet Toyatte Glacier Berg Creek Fairweather, MountBoundary Peak Boundary Peak Merriam, Mount Idaho Ridge Quincy Adams, Mount Jaw Point L Twin Glacier Kadachan Glacier Composite Island Kutz, Mount Kloh Johns Hopkins Inlet Klotz Hills y Morse Glacier Sea Otter Creek Ibach Point Tree Mountain Maquinna Cove Tyeen Glacier Oberlin Ridge Adams Inlet Parker, Mount George, Saint Charley Glacier Cooper, Mount Reid Inlet n Kashoto Glacier Black Cap Mountain John Glacier Salisbury, Mount Pyramid Peak Vivid Lake Endicott Gap Fairweather Glacier Hoonah Glacier Dirt Glacier n Muir Point Lamplugh Glacier Tidal Inlet Case, Mount Gilbert Peninsula Ice Valley Clark Glacier White Glacier Scidmore Glacier Wright, Mount Lituya Mountain Johns Hopkins Glacier Scidmore