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Most popular

  • Copper River Delta, Alaska
  • Western Sandpiper (Calidris mauri), Copper River Delta, Alaska
  • Copper River Delta Shorebird Festival, Cordova, Alaska
  • Copper River Delta, Alaska
  • Western Sandpiper (Calidris mauri), Copper River Delta, Alaska
  • Bald Eagle (Haliaeetus leucocephalus), Copper River Delta, Alaska
  • Rufous Hummingbird (Selasphorus rufus), Cordova, Alaska
  • Western Sandpiper (Calidris mauri), Copper River Delta, Alaska
  • Western Sandpiper (Calidris mauri), Copper River Delta, Alaska
  • Western Sandpiper (Calidris mauri), Copper River Delta, Alaska
  • Copper River Delta, Alaska
  • Tidal flats at Cordova, Copper River Delta, Alaska
  • Checking artificial nesting site, freshwater marsh, Copper River Delta, Alaska
  • Copper River Delta, Alaska
  • Copper River Delta from air, Alaska
  • Copper River Delta from air, Alaska
  • Copper River Delta, Alaska
  • Freshwater marsh, Copper River Delta, Alaska
  • Saltmarsh, Copper River Delta, Alaska
  • Tidal flats at Cordova, Copper River Delta, Alaska
  • Freshwater marsh, Copper River Delta, Alaska
  • Freshwater marsh, Copper River Delta, Alaska
  • Saltmarshes and tidal flats, Copper River Delta, Alaska
  • Columbia Glacier, Prince William Sound, Alaska (1986)
  • Bear footprints, Tidal flats, Copper River Delta, Alaska
  • Bear traces at river bank, Copper River Delta, Alaska
  • Anchorage (1986), Capital of Alaska
  • Train to Denali National Park, Alaska
  • Arctic Ground Squirrel (Spermophilus parryii), Denali National Park, Alaska
  • Snow Sheep or Dall's Sheep (Ovis nivicola borealis), Denali National Park, Alaska
  • Towards Denali National Park, Alaska
  • Denali National Park, Alaska
  • Towards Denali National Park, Alaska
  • Denali National Park, Alaska
  • Towards Denali National Park, Alaska
  • Towards Denali National Park, Alaska
  • Denali National Park, Kahiltna Glacier near Mount McKinley, Alaska
  • Denali National Park, Kahiltna Glacier near Mount McKinley, Alaska
  • Denali National Park, Kahiltna Glacier near Mount McKinley, Alaska
  • Mount McKinley, Denali National Park,  Alaska
  • Beluga Whales (Delphinapterus leucas), North of Thule, North-West Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Purple Sandpiper (Calidris maritima), one day old, Thule, North-Westr Greenland
  • Purple Sandpiper (Calidris maritima), Thule, North-Westr Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Waterfall at the Glacier Front of the Greenland Ice Sheet, near Olrik Fjord, North-West Greenland
  • Old Thule, abandoned village, North-West Greenland
  • Breeding habitat of Red Knots (Calidris canutus iskandica), Thule, Greenland
  • One day old Red Knots (Calidris canutus iskandica), Thule, Greenland
  • Red Knot (Calidris canutus iskandica) in breeding habitat, Thule, Greenland
  • Northern Clouded Yellow (Colias hecla) Caterpillar, Thule, North-West Greenland
  • Northern Clouded Yellow (Colias hecla) Butterfly, Thule, North-West Greenland
  • Greenland Ice Sheet, Floating at the Edge, West-Greenland
  • Fjord in between Ice-free West-Greenland
  • Greenland Ice Sheet, Floating at the Edge, West-Greenland
  • Nest Red Knot (Calidris canutus iskandica), Thule, Greenland
  • Greenland Ice Sheet, Floating at the Edge, West-Greenland
  • Greenland Ice Sheet, Floating at the Edge, West-Greenland
  • Turnstone (Arenaria interpres), Thule, North-West Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Arctic Willow (Salix arctica), Thule, Greenland
  • Arctic desert, Olrik Fjord, Northern Greenland
  • Melting Sea Ice and stranded Icebergs, North-West Greenland
  • Prudhoe Bay oil field, Alaska-Pipeline (1993)
  • Snow Geese, Prudhoe Bay oil field, Alaska (1993)
  • Prudhoe Bay oil field, Alaska-Pipeline (1993)
  • Prudhoe Bay oil field, Alaska (1993)
  • Prudhoe Bay oil field, Alaska (1993)
  • Prudhoe Bay oil field, Alaska (1993)
  • Prudhoe Bay oil field, Alaska (1993)
  • Prudhoe Bay oil field, Alaska (1993)
  • Khumbu Glacier, Sagarmatha National Park, Nepal
  • Gorakshep, Sagarmatha National Park, Nepal
  • Gorakshep, Sagarmatha National Park, Nepal
  • Namche Bazaar, Sagarmatha National Park, Nepal
  • Drying Rice, village in the Gorkha Region, Nepal
  • Peary Land,  northernmost land in the world, Greenland
  • Peary Land,  northernmost land in the world, Greenland
  • Peary Land,  northernmost land in the world, Greenland
  • Peary Land,  northernmost land in the world, Greenland
  • Spectacled Eider female (Somateria fischeri), Prudhoe Bay, Alaska
  • Brent Geese (Branta b. nigricans), Prudhoe Bay Oil Field, Alaska
  • Saxifraga oppositifolia, Prudoe Bay oil field, Alaska
  • Red Fox, Prudhoe Bay Oil Field, Alaska
  • Red Fox - Prudhoe Bay Oil Field - Alaska
  • Raven (Corax corax), Prudhoe Bay Oil Field, Alaska (1986)
  • Raven on pipeline, Prudhoe Bay Oil Field, Alaska (1986)
  • Arctic Tundra Wetlands in June, Prudhoe Bay Oil Field, Alaska (1986)
  • Prudhoe Bay Oil Field, Alaska (1986)
  • Prudhoe Bay Oil Field, Alaska, 1986
  • Prudhoe Bay Oil Field, Alaska (1986)
  • Arctic Tundra Wetlands in June, Prudhoe Bay Oil Field, Alaska (1986)
  • Arctic Tundra in June, Prudhoe Bay Oil Field, Alaska (1986)
  • Arctic Tundra in June, Prudhoe Bay Oil Field, Alaska (1986)
  • Prudhoe Bay Oil Field, Alaska (1986)