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Initial camp site at Centrum Lake, raised delta location
Unloading of weasel snow vehicle from C-130 ski aircraft on Centrum Lake
C-130 ski-wheeled aircraft lands personnel and equipment on snow at Centrum Lake
Bare or thawed out spots in snow cover of Centrum Lake terrace.
Melting of snow on raised delta. Sublimation in site.
Measurement of lake ice thickness. Stan Needleman, USAF, and Al Maher
Drilling 90 holes in lake ice cover to determine thickness. Stan Needleman
Sampling bottom sediments of Centrum Lake. Dr. Daniel B. Krinsely
Installing of thermistor cable to measure temperatures; mounted on drums
Weasel transporting survey party back to base camp at Centrum Lake through snow,
Dr. Dan Krinsely USGS near Dr. Lauge Koch of Danmarks Fjord cache.
Melting of ice formed into needle ice
Moat developing around edge of Centrum Lake. Personnel: Dan Krinsely USGS, and ?
Field party crosses on moat at Centrum Lake near Dr. Lauge Koch cache
Exploring Saefaxi River to Greenland Ice Cap, exposure suits in use
Lake ice melting
Checking bottom sampling tube in Centrum Lake tests.
Camp site on north shore of Centrum Lake, moat starting at edge of lake.
Needle ice formed on Centrum Lake with melt water drainage
William E. Davies USGS and Stan Needleman USAF, leader of Operation Groundhog
Head of Danmarks Fjord. Operation Groundhog, U.S. Air Force
Centrum Lake Valley. View from the west. Ice cap in the background.
Aerial view of raised delta of Centrum Lake. Note the Saefaxi River
Aerial view of Centrum Lake area
Moat of melted water surrounding Centrum Lake
U.S. Army helicopters at base camp at Centrum Lake.
US Army helicopters based at Centrum Lake.
U.S. Army helicopters based at Centrum Lake.
US Army helicopters staging from Cape Rasmussen and camp established on July 4
Polar bear along north coast of Greenland.
Skull of dead muskox mounted on US Army weasel at Centrum Lake.
Cache air-dropped from C-130 in 1959 onto Rasmussen land. Used 7/5/1960
U.S. Army helicopter pilots, North Greenland coast on Arctic Ocean.
[Peary's] Cairn at Cape Morris Jesup. Dr. William E. Davies, Geologist
View east, Arctic Ocean in frozen state at shore of Cape Morris Jesup
View south toward Greenland Ice Cap, terrace at Cape Morris Jesup.
View west of Cape Morris Jesup - Arctic coast - note terrace of the cape
North coast of Greenland above Cape Bridgeman, Arctic Ocean coastline.
Closeup of Cape Bridgeman area, North Greenland coast on Arctic Ocean.
Food cache air dropped on Cape Morris Jesup with parachute cover.
View west, Cape Morris Jesup. Cache site.
Cape Morris Jesup, North Greenland. Terrace.
US Army helicopter pilots open cairn at Cape Morris Jesup, North Greenland.
View south at Cape Morris Jesup
View east at Cape Morris Jesup
View southwest at Cape Morris Jesup
Ice ridges off Cape Morris Jesup, North Greenland coast. Arctic Ocean coastline.
Refueling helicopters from caches at Cape Morris Jesup, North Greenland
Cape Morris Jesup Valley. View southeast
Ice ridges located off Cape Morris Jesup.
Close-up view of Cape Morris Jesup, aerial
Official cairn on Cape Morris Jesup. US Army helicopters in background.
US Army helicopters, base camp at Bronlunds Fjord. Ice on fjord in background
Mid-sommer Lake, Schlussen, ice polish.
Map of Robeson Channel indicating all areas along North Greenland coast
View of Smith Sound World Aeronautical Chart to show areas of investigation
Royal Canadian Air Force C-119 made emergency wheeled landing on soil runway
Lone musk ox bull cast out by herd near upper terrace of Bronlunds Fjord.
Landing on shore by SA-16; rafting personnel and equipment for Operation Group
Study of soil polygons in foreground near runway site at Bronlunds Fjord site.
Nunataks of Peary Land, North Greenland. View toward ice cap.
North of area surrounding natural runway, Bronlunds Fjord. Icebergs beyond
View of raised delta in dry state.
Enroute - Thule AFB to Polaris Promontory by icebreaker U.S.S. ATKA
Aerial view of Centrum Lake base camp with US Army helicopters. Saefaxi River
Soils engineering tests on runway at Polaris Promontory.
Advance party of US Army Ice Cap Expedition (Lead Dog Operation)
Loading of C-130 aircraft with equipment and personnel after aircraft landing
Air Force Arctic Terrain Research Program, Research and Development, Hanscom Bas
US Army Lead Dog Expedition on a surface operation on Greenland Ice Cap
Digging in permafrost at Centrum Lake, snow cover of 2 ft. Use of oil fire to m
Drainage from terrace into Centrum Lake; snow cover still on terrace.
View of Bronlunds Fjord from the air. Note floating icebergs.
Measuring depth and contour of Centrum Lake by dropped weight on cable
View of Bronlunds Fjord area. View toward ice cap.
View of main Greenland ice cap and access route
Permafrost raised polygons from the air in Peary Land.
View north, frozen Graeselven River. Personnel: Dr. Dan Krinsely USGS.
Testing of lake ice during melt of Centrum Lake, average thickness is 4 feet
Edge of Greenland Ice Cap in Peary Land. Locating a suitable access route down
Drainage of high areas into Centrum Lake.
Grassrig (Graeselven) River winding back to ice cap.
Edge of Greenland Ice Cap in Peary Land. Searching for access to Centrum Lake
View of Grassrig (Graeselven) River toward Greenland Ice Cap. Ice still in lake
Independence Fjord and glaciers flowing adjacent to Bronlunds Fjord [aerial]
Independence Fjord intersects Bronlunds Fjord, glaciers and fjord ice [aerial]
Aerial view of runway area on Polaris Promontory. Tents in lower left
View north of Saefaxi River draining into Centrum Lake. Raised delta
Icebreaker USCG Westwind, lands Air Force research team plus equipment by LCVP
Landing barge from the icebreaker to Polaris Promontory beach. Required skirting
Tractor crossing on Polaris Promontory. Duckboards were used to ford the rivers.
Aerial view at lower altitude of runway area on Polaris Promontory.
Light grading of runway microrelief on Polaris Promontory.
Completed natural runway on Polaris Promontory. Red flags mark path
River valleys draining Greenland Ice Cap and flowing into Centrum Lake.
Tussocks on raised delta at Centrum Lake.
Aeril view of Centrum Lake and raised delta and Saefaxi River
View north toward Greenland Ice Cap.
Testing bearing strength at Centrum Lake - proving ring model
Arctic char caught in Centrum Lake. Many fish caught in only 3 weeks
View of raised delta, Centrum Lake. 2 men exploring orientation of runway
View of raised delta from moat on Centrum Lake. Some ice still floating in lake
Centrum Lake base camp including 2 US helicopters and vehicles.
Jaeger birds eating thrown bits of food at base camp.
Using lake gauge to measure water depth at shoreline on Centrum Lake.
Geological reconnaissance near Centrum Lake. Stan Needleman USAF
Geological reconnaissance of Centrum Lake area about 20 miles from ice cap
View from Bronlunds Fjord.
Terrace of Centrum Lake, NE Greenland. Note footprints in loose sand.
Lt. Col. Robert H. Wilson USAF, points to selected emergency aircraft runway
View of raised delta, terrace at Centrum Lake. Note tussocks of vegetation
Access to Bronlunds Fjord runway site by SA-16 amphibian aircraft, USAF and raft
Upper terrace of Centrum Lake. View toward Greenland ice cap. George St...?
Lt. Col. Robert Wilson USAF standing on shore of the bay. View northwest
Wrecked air-dropped jeep; parachutes mark airfield runway at Bronlunds Fjord
Soils engineering tests to locate runway on old dry lake bed at Bronlunds Fjord
Bearing strength tests to determine runway orientation and suitability
Soil engineering and permafrost tests in test pits along the proposed runway
Camp site of Operation Groundhog on runway at Bronlunds Fjord.
SA-16 aircraft dropping supplies and mail on runway at Bronlunds Fjord airfield
C-124 at base camp after successful test landings on unimproved natural runway
C-124 aircraft test landing on natural surface runway at Bronlunds Fjord.
Track of C-124 USAF aircraft on runway, Bronlunds Fjord natural surface. No ruts
Testing of bearing strength on runway site at Bronlunds Fjord. Stan Needleman
Aerial view of Bronlunds Fjord runway site and camp area of field party
C-124 coming in for test landing on runway at Bronlunds Fjord.
View of Independence Fjord, Peary Land.
Aerial view of runway from helicopter looking north. Arctic Ocean 25 miles away
Tractor/grader completed modification of runway surface microrelief.
Tractor and jeep with trailer were the field transports to prepare runway.
Loading jeep to provide soil engineering data in testing of runway.
Sgt David Craven installs portable radar reflectors at the corners of the runway
C-130 landing on Air Force runway.
Severald test landings were made on the runway.
Aircraft tire tracks of C-130 on runway, from the air
Aircraft tire tracks on runway.
Icebreaker U.S.S. Atka, ice-bound temporarily. View from shore of Canada.
USCG icebreaker Westwind in Polaris Bay.
USCG icebreaker Westwind in Polaris Bay launching landing craft.
Unloading tractor from icebreaker's landing craft on shore of Polaris Promontory
Field engineering tests using tractor as basic load of test equipment.
2 geologists and 1 civil engineer locate/test runways on Polaris Promontory
North shore of thawed out Centrum Lake. 265 ft. average depth.
Two boats, 16 ft & 18 ft, with outboard motors, used to survey Centrum Lake
C-130 aircraft test landing on Centrum Lake runway on raised delta.
World Aeronautical Chart of Bronlunds Fjord area.
Weasel with sled as prime transport and surveying vehicle from Centrum Lake
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Last updated: 03/20/2023