Bird petroglyph, Petroglyph Beach, State Historic Park, archaeological site, Wrangell, pioneer port, Southeast Alaska, United States of America, North America

Jet-boats head for the Stikine River, mist clears from beautiful Petroglyph Beach, State Historic Park, Wrangell, Alaska, United States of America, North America

Mist clears from beautiful Petroglyph Beach, State Historic Park, archaeological site, Wrangell, pioneer port, Alaska, United States of America, North America

Petroglyphs with mist clearing from beautiful Petroglyph Beach, State Historic Park, Wrangell, Inside Passage, Alaska, United States of America, North America

Rainbow with fall colors near King Mountain State Recreation Area and Chickaloon, Alaska, United States of America, North America

Mist clears from beautiful Petroglyph Beach, State Historic Park, archaeological site, Wrangell, pioneer port, Alaska, United States of America, North America

Rainbow with fall colors near King Mountain State Recreation Area and Chickaloon, Alaska, United States of America, North America

Juneau, State Capital, view from the sea, mist clears over downtown buildings, mountains, forest and float planes, Alaksa, United States of America, North America

Resting moose, Chugach State Park, Anchorage, Alaska

Juneau, State Capital, view from the sea, mist clears over downtown buildings, mountains, forest and float planes, Alaksa, United States of America, North America

A view of the Maclaren River RT 305 trailhead on State Highway 8 near Paxson, Alaska, United States of America, North America

Alaska Range seen from K'esugi Ridge Trail, Denali State Park, Matanuska-Susitna Borough, Southcentral Alaska, Alaska, United States of America, North America

Small lake with Alaska Range in background, seen from K'esugi Ridge Trail, Denali State Park, Matanuska-Susitna Borough, Southcentral Alaska, Alaska, United States of America, North America

Alaska Range seen from K'esugi Ridge Trail, Denali State Park, Matanuska-Susitna Borough, Southcentral Alaska, Alaska, United States of America, North America

Cascade on Falls Creek, Chugach State Park, Alaska, United States of America, North America

Alaska Range seen from K'esugi Ridge Trail, Denali State Park, Matanuska-Susitna Borough, Southcentral Alaska, Alaska, United States of America, North America

A view of the lake near Manatusa State Park, Alaska, United States of America, North America

Horned puffin. Fratercula corniculata. Round island, walrus islands state game sanctuary alaska, usa

Walrus. Odobenus rosmarus. Male/bull in summer. Round island, walrus island state game sanctuary, alaska, usa

Red fox. Vulpes vulpes. Summer. Round island, walrus island state game sanctuary, alaska, usa. Restrictions: no greetings cards

Red fox. Vulpes vulpes. Summer. Round island, walrus islands state game sanctuary, alaska, usa

Juvenile bald eagle (Haliaeetus leucocephalus) perched in Sitka Spruce tree (the Alaska state tree) in Takatz Bay on Baranof Island, Southeast Alaska, USA

Adult Dall's Porpoise (Phocoenoides dalli) surfacing (note characteristic "rooster tail" splash from body) in the San Juan Islands, Washington State, USA.

An Orca pod (Orcinus orca) encountered near Waldron Island in the San Juan Island group of Washington State, USA

Indian Summer, autumn along Dezadeash Lake, Haines Road, towards Haines Pass, Alaska, leaves in fall colours, St. Elias Mountains, Kluane and Boundary Ranges behind, Kluane National Park and Reserve, Yukon Territory, Canada

Willow Ptarmigan (Lagopus lagopus)

Aerial view of Homer Spit, Homer, Kachemak Bay, mountains of Kachemak Bay State Park, Kenai Peninsula, South Alaska, Alaska, USA, North America

Autumn landscape in Denali State Park, Central Alaska, Alaska, USA, North America

Autumn landscape in Denali State Park, intense colours, reflections in the water, Central Alaska, Alaska, USA, North America

Autumn landscape in Denali State Park, intense colours, reflections in the water, Central Alaska, Alaska, USA, North America

Alaska Highway towards Haines Junction, St. Elias Mountains, Kluane Range behind, Kluane National Park and Reserve, Yukon Territory, Canada

State of Alaska entry sign, White Pass, South Klondike Highway, Skagway, Alaska, USA

US - Canadian border crossing sign, White Pass, south Klondike Highway, Alaska and British Columbia, B. C., Canada

A pair of Pacific walruses (Odobenus rosmarus) joust with ivory tusks on the rocky shore of Walrus Islands State Game Sanctuary on Round Island at Bristol Bay in Alaska's Bering Sea.

A horned puffin (Fratercula corniculata) stands on a rocky, lichen-covered precipice at the Walrus Islands State Game Sanctuary on Round Island at Bristol Bay in Alaska's Bering Sea.

High Mountain Rangers Tom Ditola and David Weber are taking a rest on the West Rib on Mount McKinley, Alaska. Mount Hunter in the background. They are above the clouds in blue sky and the sun is shining. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to base camp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage.

Mountain ranger Brian Scheele on this way to Windy Corner on Mount McKinley, also know as Denali, in Alaska. He is pulling a sled, that together with his heavy backpack is containing all the gear like tents, clothing and food. Every climbing season High Mountain Rangers of the Denali National Park Service are called to help climbers in need. If possible the patient is brought down to Basecamp on foot, only in life threatening conditions a helicopter is called to evacuate the patient to a hospital in Anchorage. Mount McKinley, native name Denali, is the highest mountain peak in North America, with a summit elevation of 20,321 feet (6,194 m) above sea level. At some 18,000 feet (5,500 m), the base-to-peak rise is considered the largest of any mountain situated entirely above sea level. Measured by topographic prominence, it is the third most prominent peak after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, McKinley is the centerpiece of Denali National Park and Preserve.

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one flies from the top of a tree with a rodent in it's claws, Alaska, United States of America

Packraft on the banks of the Charley River, sun going down behind ridge in background, Yukon-Charley Rivers National Preserve, Alaska, United States of America

Willow ptarmigan (Lagopus lagopus) in full-white winter plumage watches for danger on a bright February day, Anchorage, Alaska, United States of America

Mature bull moose (Alces alces) with antlers in velvet standing in a field, Alaska Wildlife Conservation Center, South-central Alaska, Portage, Alaska, United States of America

Close-up portrait of a Willow ptarmigan (Lagopus lagopus) in full-white winter plumage watching for danger on a bright February day, Anchorage, Alaska, United States of America

Dall sheep ewe (Ovis dalli dalli) in thick winter pelage rests in this image taken in the bluffs along the Seward Highway and Turnagain Arm south of Anchorage, Alaska, USA, Alaska, United States of America

Sandhill crane (Grus canadensis) migrating north in late April to nesting grounds in Alaska, cries out from a farmer's field in Palmer, Alaska. Located in the Matanuska Valley, Palmer was founded as an agricultural colony in the mid-20th century, Palmer, Alaska, United States of America

Bull moose (Alces alces) is startled as a jealous cow threatens a competitor during the rut, or breeding season, in Southcentral Alaska's Chugach State Park, USA, Alaska, United States of America

Approached by a cow moose, a bull (Alces alces), displays the Flehmen response late in the rut in Southcentral Alaska's Chugach State Park, Anchorage, Alaska, United States of America

Blue ice formations on Knik glacier against a bright blue sky, Alaska, United States of America

View of the blue ice formations at the Knik Glacier in Alaska, Kenai Peninsula Borough, Alaska, United States of America

A black-billed magpie (Pica hudsonia) picks the bones of a dead Dall sheep killed by wolves in Chugach State Park, Alaska, United States of America

Close-up portrait of a male willow ptarmigan (Lagopus lagopus) showing early breeding colors in its neck and eye combs, surveying its high-country territory in Southcentral Alaska's Chugach Mountains on an April day. The head and neck will become completely chocolate-brown as the bird's breeding colors develop, Alaska, United States of America

Pail of wild blueberries picked from the alpine tundra of Southcentral Alaska's Kenai Mountains. Blueberries of one variety or another are found throughout Alaska, Alaska, United States of America

Yearling brown bear siblings (Ursus arctos) roughhousing near McNeil River, Alaska, while their mother feeds nearby on sedges, Alaska, United States of America

Portrait of a pair of river otters (Lutra canadensis) pause near an ice-fishing hole on an Anchorage area lake. Members of the weasel family, otters catch and eat trout, suckers and other fish, Anchorage, Alaska, United States of America

Close-up of a sign at the McNeil River State Game Sanctuary. McNeil River Camp is operated by the Alaska Department of Fish and Game. The Department hosts guests in small numbers throughout the summer and early fall and provides bear-viewing tours. Guests must enter and be drawn in an annual lottery to be granted access to this world-famous brown bear sanctuary, Alaska, United States of America

A brown bear (Ursus arctos) standing upright among the sedges, appears to dance to music only it can hear overlooking McNeil Cove in Southwestern Alaska, Alaska, United States of America

A brown bear (Ursus arctos) standing upright among the sedges, appears to dance to music only it can hear overlooking McNeil Cove in Southwestern Alaska, Alaska, United States of America

Close-up portrait of a bald eagle (Haliaeetus leucocephalus) looking out from its perch on a tree branch against a washed out sky, Haines, Alaska, Unites States Of America

Sow brown bear (Ursus arctos) feeds on sedges as her yearling cub looks on near McNeil River, Alaska. Brown bears gather in the area each spring and early summer to feed heavily on nutritious sedges prior to the arrival of local salmon runs, Alaska, United States of America

Yearling Brown bear siblings (Ursus arctos) take a break from roughhousing near McNeil River, Alaska, while their mother feeds nearby on sedges. Brown bears gather in the area each spring and early summer to feed heavily on nutritious sedges prior to the arrival of local salmon runs, Alaska, United States of America

Portrait of a black bear (Ursus americanus) pausing on a mountainside from feeding on lowbush cranberries and looking at the camera on a mid-October afternoon in Southcentral Alaska's Chugach Mountains, Alaska, United States of America

Portrait of a red fox (Vulpes vulpes) standing in the grass watching intently while hunting on a frosty October morning in Southcentral Alaska, Anchorage, Alaska, United States of America

Close-up portrait of the profile of a red fox (Vulpes vulpes) pausing while hunting on a frosty October morning in South Central Alaska, Anchorage, Alaska, United States of America

Close-up portrait of a Canada Lynx (Lynx canadensis) resting in the shadows of a Southcentral Alaska alder thicket. Lynx populations are closely linked to booms and busts in the numbers of their main prey the snowshoe hare, Alaska, United States of America

Alaska bull moose (Alces alces) patrols a marsh during the rut, or fall breeding season, in mid-September, Anchorage, Alaska, United States of America

Close-up portrait of a Canada Lynx (Lynx canadensis) looking at the camera through the branches of a Southcentral Alaska alder thicket. Lynx populations are closely linked to booms and busts in the numbers of their main prey the snowshoe hare, Alaska, United States of America

Bright aurora dancing in the sky, Taylor Highway, Interior Alaska in autumn; Alaska, United States of America

Brown bear (Ursus arctos) encountered near the sedge flats near McNeil River, Alaska. Brown bears feed heavily on nutritious sedges each spring and early summer prior to the arrival of local salmon runs, Alaska, United States of America

Brown bear (Ursus arctos) pauses on a spit extending into southwestern Alaska's McNeil Cove, Alaska, United States of America

Portrait of a river otter (Lutra canadensis) lying down near an ice-fishing hole on an Anchorage area lake. Members of the weasel family, otters catch and eat trout, suckers and other fish, Anchorage, Alaska, United States of America

Large splash in the ocean after a piece of glacier calves off into the ocean, Whittier, Alaska, United States of America

Large splash in the ocean after a piece of glacier calves off into the ocean, Whittier, Alaska, United States of America

Three caribou (Rangifer tarandus) walk by oil storage tanks near Prudhoe Bay and the Point Lonely Short Range Radar Site, where the Central Arctic herd migrates north each summer, Alaska, United States of America

Kenai Fjords National Park and Exit Glacier on a mid-summer day as seen from the Harding Icefield Trail in South-central Alaska, Alaska, United States of America

Bull moose (Alces alces) wades through the mist of a cool Southcentral Alaska evening during the September 'rut', or breeding season. Moose are the largest member of the deer family. The animals are circumpolar and the Alaska-Yukon race, Alces alces gigas, is the largest of all, Alaska, United States of America

Close-up portrait of the profile of a red fox (Vulpes vulpes) looking up and testing the wind while hunting on a frosty, October morning in South Central Alaska, Anchorage, Alaska, United States of America

Portrait of a bull moose (Alces alces) walking through an alpine meadow late in the rut in Southcentral Alaska's Chugach State Park, Alaska, United States of America

Brown bear (Ursus arctos) pauses on a sedge flat near McNeil River in Southwest Alaska. Sedges are surprisingly high in protein and are a favored food for brown bears early in the summer before salmon runs ramp up, Alaska, United States of America

Mature bull moose (Alces alces) with a large rack of antlers spanning close to two meters (six feet) wide, pauses late in the rut in Southcentral Alaska's Chugach State Park, Alaska, United States of America

Black bear (Ursus americanus) pauses from preparing for hibernation by foraging for wild berries on a Turnagain Arm mountainside in late October, Alaska, United States of America

Bull moose (Alces alces) pauses late in the rut in South-central Alaska's Chugach State Park, Anchorage, Alaska, United States of America

Teenage girl leaning against ice walls on the Matanuska Glacier in Sutton, Alaska, Sutton, Alaska, United States of America

Close-up portrait of a collared pika (Ochotona collaris) pausing on a boulder in mid-August with a hank of wild grass in its mouth in Southcentral Alaska's Hatcher Pass in the Talkeetna Mountains north of Palmer, Alaska, United States of America

Teenage girl walking on the Matanuska Glacier in between blue ice walls, Sutton, Alaska, United States of America

Spiky ice formations along the ice wall of the Matanuska Glacier on a cloudy day, Sutton, Alaska, United States of America

Grizzly bear (Ursus arctos horribilis) surrounded by fall foliage in Denali National Park, Denali National Park & Preserve, Interior Alaska, Alaska, United States of America

A collared pika (Ochotona collaris) pausing on the alpine tundra at Southcentral Alaska's Hatcher Pass, high in the Talkeetna Mountains north of Palmer in late August, Alaska, United States of America

Glenn Highway divides the image, surrounded by spruce forest and brush in Southcentral Alaska, at sunset, with cars in the distance looking towards Lion's Head and the Chugach Mountains on a smokey, hazy, summer night; Chickaloon, Alaska, United States of America

Large male Brown bear (Ursus arctos) walks towards camera in snow, captive at Alaska Wildlife Conservation Center, South-central Alaska, Alaska, United States of America

Denali National Park and Preserve as seen from Peters Hills with 20320' Mount Denali, formally know as Mount McKinley, and the Alaska Range, Trapper Creek, Alaska, United States of America

Red fox (Vulpes vulpes) sitting in the snow. Fox family was often seen here near Campbell Creek and traveling on the city bike trail, Alaska, United States of America

Northern Lights over Juneau Icefield, Tongass National Forest, Alaska, United States of America

Female Brown bear (Ursus arctos) looking at camera with mouth open, captive in Alaska Wildlife Conservation Center, South-central Alaska, Portage, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky with a rodent in it's mouth, Alaska, United States of America

Red fox (Vulpes vulpes) prowls the Campbell Creek area in winter looking for rodents and other food. Fox is shown looking out from a hole that may be a future den, South-central Alaska, Anchorage, Alaska, United States of America

A cow moose (Alces alces) and calf trot along the snowy Arctic Valley Road towards a vehicle in winter, passing by a car with little concern, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), has just made a vole kill and is about to fly back to a perch to consume it. Grass piece has been removed from face. Owl looks at camera. South-central Alaska, Anchorage, Alaska, United States of America

Sea Otters (Enhydra lutris) rest on a dock in the small boat harbour, Seward, Alaska, United States of America

Northern Lights over Juneau Icefield, Tongass National Forest, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky, South-central Alaska, Anchorage, Alaska, United States of America

Willow Ptarmigans (Lagopus lagopus) standing in snow with white winter plumage in Arctic Valley, South-central Alaska, Alaska, United States of America