Library Images

LS00
LS01

Other Groups

Louis Sass

Andrew Larson on the Summit of Mt. Dickey looking south along the peaks of the Ruth Gorge, Mt. Bradley and Mt. Wake. Denali National Park, Alaska.
LS0001-00 		Andrew Larson moves into the sun on the northwest face of Mt. Barrille. Denali National Park, Alaska.
LS0002-00 		Andrew Larson in a spotlight of morning sunshine on the northwest face of Mt. Barrille. Large seracs loom in the background. Alaska
LS0003-00
Andrew Larson Skiing under the south face of Mt. Dan Beard. Mt. Dickey (taller) and Mt. Barrille (on left) are in the background. Denali National Park, Alaska.
LS0004-00 		Christine Smith-Siddoway, Investigator on US National Science Foundation research grant, in a huge wind-scoop in Arthur Glacier on Mt. Little. Dark brown planar surface beyond her shows the shear fractures and faults she was studying to reconstruct previous tectonic activity in the area. The rock is Late Cretaceous Byrd Coast Granite. West Antarctica.
LS0005-00 		J. Stone collecting glacial erratics off Wells Ridge for cosmogenic isotope exposure dating. Rock in foreground is Paleozoic (Cambrian) Swanson Formation, greenschist facies metagraywacke and metaturbidites of oceanic origin.Rock on peaks behind is Byrd Coast Granite, a Cretaceous leucogranite (granite) with A type chemistry. West Antarctica.
LS0006-00
Scott tent on the margin of the Arthur Glacier in front of the granite walls of Mt. Dolber. The rock is Late Cretaceous Byrd Coast Granite. West Antarctica.
LS0007-00 		Mike Roberts on the summit pedaplane of The Billboard, with Mt Rhea in background. The peaks of Western Sarnoff Range are composed of Late Cretaceous Byrd Coast Granite. On right is Boyd Glacier. Left is the Arthur Glacier. Far distant peaks:(centre) E. Sarnoff Mts. & (left) Denfield Mts. West Antarctica.
LS0008-00 		Traversing back to Mt. Rea from The Billboard, a magnificent chunk of Late Cretaceous Byrd Coast Granite at western end of Sarnoff Mountains. It has shear walls except for ramp in centre of picture. Right is Arthur Glacier & left is Boyd Glacier. Sulzberger Ice Shelf in background. The summit slopes of Billboard are a very old erosion surface. W.Antarctica.
LS0009-00
Chris Kugleman searching for glacial erratics on Mt. Spencer. Mt. Darling, & an unnamed tributary to Boyd Glacier is in background. During the Last Glacial Maximum the West Antarctic Ice Sheet was significantly thicker in this area. Cosmogenic Isotope dating allows researchers to reconstruct the paleo surface levels of the glacier. West Antarctica.
LS0010-00 		Raised tracks in the snow after a storm. Most storms in the Ford Ranges come in with strong winds, which drift piles of snow up around camps. The end of the storm is often marked by a wind shift, which in this case eroded the storm drifts away, leaving only these hardened footprints. West Antarcitca.
LS0011-00 		View of Mt.Foraker 17,400ft from W. Buttress of Denali. The 14,000ft camp on Denali is lower left in picture. On warm summer days when there is big high pressure north of the Alaska Range it pushes warm air up & over the mountains. As the air rises over tundra it forms a band of low to mid altitude clouds that tend to dissipate as they move down from range.
LS0012-00
Climber cooking dinner at Browne Tower (14,600ft) on the Karstens Ridge of Denali during a traverse from the Kahiltna Glacier to Wonder Lake. The South (main) summit is in sun light (top left of picture) and the North Summit is in shade (top right). The Harper Glacier flows down between the two summits. Alaska. U.S.A.
LS0013-00 		View of the lower Harper Glacier from Browne Tower at the top of the Karstens ridge on Denali. The Muldrow Glacier and the Harper Glacier form the easiest route on the north side of Denali. The crux of that route is the Karstens ridge. Alaska.
LS0014-00 		Bryn Clark checking out grizzly tracks on the tidal flats in Gustavus, just outside Glacier Bay National Park. The Fairweather Range is in the background. Alaska.
LS0015-00
A patch of afternoon sunshine breaks through a layer of cumulo-nimbus clouds, lighting up the Chilkat Towers, SE Alaska. View is from the head of the Sweetness Valley, BC.
LS0016-00 		Roger Yim looking across the Sweetness Valley to Greyskull, and enjoying the sunset above a valley fog formed by low nimbus clouds. Alaska.
LS0017-00 		Roger Yim looking north across the Sweetness Valley, and enjoying the sunset above a valley fog formed by low nimbus clouds. Greyskull on the left, is on the BC Alaska boundary. The unnamed peaks of BC and Yukon are in the distance. Alaska.
LS0018-00
Photographer Ann Hawthorn at work. Larry Conrad and Susan Detweiler seated. On the rocks above Cape Ross, with the Evans Piedmont Glacier and Mt. Endeavor in the Kirkwood Range in the background. E. Antarctica.
LS0019-00 		Susan Detweiler checking out a small tabular iceberg near Cape Archer. Left to right on skyline are Haystack Mountain, Mt. England, the Gonville and Caius Range, the Clare Range, The Carr Plateau (closer, Mt. Marston and Doublefinger Peak). The MacKay Glacier Tongue, Point Retreat & Cape Archer are visible at sea level. East Antarctica.
LS0020-00 		Fair weather cirrus clouds over the summit of Mt. England, Granite Harbor. East Antactica.
LS0021-00
Erratic block(3m) of Beacon Sandstone on lower Ferrar Glacier. Supra-glacial debris behind is volcanic dolerite & Beacon Sandstone. In background is low bluff below Table Mt., Knobhead, & Kukri hills. Scott's Discovery Expedition found fossils & coal seams in this area, (first clear evidence of balmier climates in the paleo-antarctic). E. Antarctica
LS0022-00 		A small granitic erratic on the wind-polished blue ice surface of the Ferrar Glacier, just below the Ferrar/Taylor Gl. junction. In background is shoulder of Table Mountain (far left), the upper Ferrar Glacier, Knobhead (center), Terra Cotta Mountain (with glimpse of Mt. Feather behind it), Windy Gully & New Mountain. E. Antarctica
LS0023-00 		View from margin of the Taylor Glacier where it calves into small lake at the toe of the Turnabout Valley. On left is the side of Pyramid Mtn. On right are the bluffs of Finger Mountain, consisting of Volcanic Dolerite & Beacon Sandstone. In center is the debris-covered toe of the Turnabout Glacier. East Antarctica.
LS0024-00
Seracs in the Sultan's Head Icefall. Fast flowing ice pours over a ledge of Basalt as it goes around Sultan's Head Rock and drops into the Ross Ice Shelf on the edge of Windless Bight. East Antarctica.
LS0025-00 		Levi Littrell on the North Ridge of Mt. Huggins (3733m) in Royal Society Range. Mt Rucker (3816m) is visible behind. Looking across the foothills of the Blue Glacier, McMurdo Sound is visible in the distance, with Ross Island and Mt. Byrd in the far distance. East Antarctica.
LS0026-00 		Layers of Beacon Sandstone form a small Gendarme on the north Ridge of Mt. Huggins, Royal Society Range. The curving medial moraines are on an unnamed tributary glacier to the Radian Glacier. McMurdo Sound, Ross Island and Mt. Erebus are all visible in the distance. East Antarctica.
LS0027-00
Evan Stout and an ephemeral supra-glacial lake on an unnamed glacier in an unnamed sector of the Northern Coast Ranges, north of Skagway, Alaska. This lake first formed in summer of 2003 when sub-glacial collapse due to thinning of the glacier formed a low spot on the surface of the glacier which quickly filled with water. Alaska.
LS0028-00 		Evan Stout and an ephemeral supra-glacial lake on an unnamed glacier in an unnamed sector of the Northern Coast Ranges, north of Skagway, Alaska. This lake first formed in summer of 2003 when sub-glacial collapse due to thinning of the glacier formed a low spot on the surface of the glacier which quickly filled with water. Alaska.
LS0029-00 		Watching a ghastly sunset over the Sweetness Valley. A thick haze of forest-fire smoke creates the odd hue & poor visibility. In summer '04 a warm dry spring & hot dry summer conspired to produce a record season of forest fires in interior of Alaska, Yukon & BC. High pressure pushes smoke laden air back to the east & over the coastal mountain ranges B.C.
LS0030-00
Bryn Clark and Porter the dog breaking trail up the S ridge of Marmot Mountain, Hatcher Pass, Talkeetna Mountains, Alaska February 2005
LS0031-00 		Settlement cones around willows. Near the headwaters of the Little Susitna River. Talkeetna Mountains, Alaska
LS0032-00 		Cornice and settlement patterns in spring snow near the headwaters of the Little Susitna River, Hatcher Pass, Talkeetna Mountains, Alaska April 2005
LS0033-00
Spring settling patterns reveal the meander of a small stream covered in snow. Headwaters of the Little Susitna River, Talkeetna Mountains, Alaska
LS0034-00 		Bryn Clark near the Mint Glacier at the head of the Little Susitna River, Talkeetna Mountains, Alaska April 2005
LS0035-00 		The Bomber Hut in the headwaters of Bartholf Creek, Talkeetna Mountains, Alaska September 2004
LS0036-00
Sunrise at Independence Mine, Independence Mine State Historic Park, Talkeetna Mountains Alaska November 2004
LS0037-00 		Bryn Clark skiing up Sunburst Mountain, Turnagain Pass, Kenai Mountains, Alaska December 2004
LS0038-00 		Bryn Clark and Porter the dog on Sunburst Mountain, Turnagain Pass, Kenai Mountains, Alaska December 2004
LS0039-00
An unknown skier on the SW face of Marmot Mountain, Hatcher Pass, Talkeetna Mountains, Alaska January 2005
LS0040-00 		East Face of The Moose's Tooth and the Bear's Tooth, from the Eldridge Glacier, Alaska Range, June 2005
LS0041-00 		Serac and ice canyon on the toe of the Matanuska Glacier, Chugach Range, Alaska June 2005
LS0042-00
Alaska Mountaineering School Mountain Guides Course on the lower Kahiltna Glacier headed for the Pika Glacier (background) and Little Switzerland. Royal Tower is just visible in the center of the view, and The Throne is left of center. Alaska Range, April 2005
LS0043-00 		Mark Harris on the West Buttress of Denali at 16,900'. Alaska Range, Alaska, May 2005
LS0044-00 		Mount Hunter, Mount Foraker, and Kahiltna Peaks from 17,200' on the West Buttress of Denali. Denali National Park, Alaska May 2005
LS0045-00
The West Buttress of Denali viewed from 17,200'. Afternoon clouds building over the tundra on the north side of the Alaska Range. Alaska May 2005
LS0046-00 		Mt Foraker viewed from 17,200' on the West Buttress of Denali. The 14,200' bench is visible in the foreground. Afternoon build up obscures the lower mountain. Alaska May 2005
LS0047-00 		Pascal Beauvais soaking up the final rays of sun in the Sweetness Valley. Greyskull in the background. Coast Ranges, Alaska British Columbia boundary. July 2005
LS0048-00
Pascal Beauvais in the Sweetness Valley. Greyskull behind. Coast Ranges, Alaska British Columbia boundary.July 2005
LS0049-00 		Sunset from the head of the Greyskull valley, Coast Ranges, British Columbia - Southeast Alaska border July 2005
LS0050-00 		The headwaters of the Noatak River. Gates of the Arctic National Park, Alaska. August 2005
LS0051-00
Paleozoic sandstone crops out above the Headwaters of the Noatak River. Iyahuna, Angayu and Tupik Creeks are in the middle of the picture. Mt. Igikpak is just barely visible on the right edge. Gates of the Arctic National Park, Brooks Range, Alaska. August 2005
LS0052-00 		Fall colors reveal patterns in vegetation & geomorphology along upper Noatak River. Green areas are willows growing in gravels along current and paleo creek channels. The bright yellows are sedges growing in poorly drained clays, probably underlain by permafrost. The brown areas are grasses, growing in drier bottom areas. Brooks Range, Alaska.
LS0053-00 		Late fall colors along the Noatak River near the village of Noatak. Alaska September 2005
LS0054-00
A record of higher water levels: small river cobbles jammed into slate. Noatak River, Noatak National Preserve, Brooks Range, Alaska. September 2005
LS0055-00 		Tracks of a sow grizzly and two cubs along the banks of the Noatak River near the Cutler River. Noatak National Preserve, Brooks Range, Alaska. September 2005
LS0056-00 		The Noatak River and the Kingasivik Mountains. Noatak National Preserve, Brooks Range, Alaska September 2005
LS0057-00
Looking towards the Maiyumerak Mountains from a camp on the Noatak River just above Noatak Canyon. Noatak National Preserve, Brooks Range, Alaska
LS0058-00 		Noatak Canyon. Noatak National Preserve, Alaska September 2005
LS0059-00 		Joe Stock on Little O'Malley Pk, Chugach State Park, Alaska
LS0060-00
View from the summit of Little O'Malley Peak. Cook Inlet, the Western Alaska Range, and Knik Arm. Directly below, Anchorage lies obscured by fog. Chugach State Park, Alaska
LS0061-00 		An exceptional show of ice halos. A pair of parhelia (sun dogs), the 22 degree halo, the parhelic circle, several subhelic arcs (inside the prominent 22 degree halo), a prominent lower sun pillar, a weak upper tangent arc, a pair of subparhelia, and perhaps even a hint of the subparhelic circle. Sunburst Mtn, Kenai Mountains, Alaska.
LS0062-00 		Tomas Jensen skiing up Tincan Ridge. Kenai Mountains, Alaska.
LS0063-00
Checking out old blocks of avalanche debris below the Superbowl. Kenai Mountains, Alaska.
LS0064-00 		Avalanche, ski tracks and skiers on tincan Ridge, Kenai Mountains, Alaska. (Avalanche details in our notes)
LS0065-00 		Skiers below Tincan Ridge in the Kenai Mountains, Alaska.
LS0066-00
Mount Carpathian in the Kenai Mountains, Alaska.
LS0067-00 		Nancy Pfeiffer on top of Pastoral Peak. Kenai Mountains, Alaska.
LS0068-00 		Afternoon sunshine on unnamed peaks in the Kenai Mountains, Alaska.
LS0069-00
Tim Hewette on top of Sunburst Mountain. Kenai Mountains, Alaska.
LS0071-00 		Tim Hewette coming off the top of Sunburst Mountain. Kenai Mountains, Alaska.
LS0072-00 		Tim Hewette on his way down Sunburst Mountain. Kenai Mountains, Alaska.
LS0073-00
Bryn Clark on her way up Mt. Silvertip. Delta Mountains, Eastern Alaska Range, Alaska.
LS0074-00 		Mt. Silvertip, Delta Mountains, Eastern Alaska Range, Alaska.
LS0075-00 		Bryn Clark below Mt. Silvertip. Delta Mountains, Eastern Alaska Range, Alaska.
LS0076-00
Michael Hay on the summit ridge of Mt. Silvertip. Delta Mountains, Eastern Alaska Range, Alaska.
LS0077-00 		Ice crystals in the upper atmosphere. A pair of parhelia, a sun pillar, the 22° halo, and a hint of the upper tangent arc viewed over the Hayes Range from the Delta Mountains. Eastern Alaska Range.
LS0078-00 		Balcony Camp on the West Rib of Denali underneath a display of ice crystal optics. A 22° halo, a parhelia or sun dog, the parhelic circle, and perhaps a hint of the Lowitz Arc (note that the Parhelia is not on the 22° halo, and that faint arcs emmanate up and down from the parhelia.) Denali National Park, Alaska.
LS0079-00
Atmospheric ice crystal displays seen from 16,300' Balcony Camp on the West Rib of Denali. The parhelic circle (through the sun), the 22 halo and the 46 halo (around the sun) and a pair of bright parhelia or sun dogs (on either side). Mt. Foraker and Kahiltna Dome are visible in bottom of the frame. Denali National Park Alaska.
LS0080-00 		Sun pillar over the 16,300' Balcony Camp on the West Rib of Denali. Denali National Park, Alaska.
LS0081-00 		The Kahiltna Glacier flowing away from Denali, flanked by Mt. Hunter, Kahiltna Peaks and Mt. Foraker. Viewed from the Balcony camp at 16,300' on the West Rib of Denali. Denali National Park, Alaska.
LS0082-00
Looking out over the southern and western portions of the Central Alaska Range from 19,000' on the West Rib of Denali. Mt Hunter on the left, the Kahiltna Glacier in the middle and Mt. Foraker on the right. Denali National Park, Alaska.
LS0083-00 		Forrest and Amy crossing the Wind River. Denali National Park, Alaska.
LS0084-00 		Bryn Clark on Lost Marsupials, The Throne. Looking out over The Crown Jewel. Pika Glacier, Little Switzerland, Denali National Park, Alaska.
LS0085-00
Tracy Roberts practising fixed rope ascension. Instructor Pascal Beauvais giving tips from the top. YSS Mtn Section. Near Big Duff Lake, B.C.
LS0086-00 		Josh Gilbert (student) Noelle Bovon (instructor) and Pascal Beauvais (instructor) scouting the route ahead. Chilkat Valley, Coast Mountains, B.C. Alaska boundary.
LS0087-00 		Group of students on the YSS Mountain Section crossing the Chilkat River. The toe of the Chilkat Glacier is immediately behind, with the unnamed and unclimbed peaks of the Coast Ranges above it. B.C. - Alaska boundary.
LS0088-00
Instructors Pascal Beauvais and Noelle Bovon camped above the Chilkat Valley on the YSS Mtn Section. Coast Ranges, Alaska - B.C. boundary.
LS0089-00 		YSS Mtn Section student Josh Gilbert looking out over the gorge of the Chilkat Valley. Coast Mountains, Alaska - B.C. Boundary.
LS0091-00 		YSS Mountaineering Section travelling through unnamed passes along the crest of the Coast Ranges, ALaska - B.C. Boundary.
LS0092-00
YSS Mountaineering Student rappelling down from Exit Pass. Sabre Glacier below. Coast Ranges, Alaska.
LS0095-00 		YSS Mountaineering Section student rapelling down from Exit Pass. Coast Ranges, Alaska.
LS0096-00 		YSS Mountaineering Section student Ryan Joslyn rapelling down from Exit Pass. Coast Ranges, Alaska.
LS0097-00
Instructor, Noelle Bovon, empties her boots after crossing West Creek. Coast Ranges, Alaska.
LS0098-00 		Bryn Clark running Campground Rapids on the Eagle River. Chugach Range, Alaska.
LS0099-00