Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) on a road with fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Mountains and a stream through the tundra in fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Mountains and tundra in fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Juvenile Dall Sheep (Ovis dalli) and lamb among fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Beaver (Castor canadensis) swimming with food, Denali National Park and Preserve, Alaska, United States of America, North America

Snow-capped mountains and tundra in fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Beaver (Castor canadensis) swimming, Denali National Park and Preserve, Alaska, United States of America, North America

Braided river in the fall, Denali National Park and Preserve, Alaska, United States of America, North America

A view of the Polychrome (many-colored) Mountains from a lookout point on the park road inside Denali National Park and Preserve , Alaska, USA.

A view of the Polychrome (many-colored) Mountains from a lookout point on the park road inside Denali National Park and Preserve , Alaska, USA.

A view of the Polychrome (many-colored) Mountains from a lookout point on the park road inside Denali National Park and Preserve , Alaska, USA.

A view of the Polychrome (many-colored) Mountains from a lookout point on the park road inside Denali National Park and Preserve , Alaska, USA.

A view of the Polychrome (many-colored) Mountains from a lookout point on the park road inside Denali National Park and Preserve , Alaska, USA.

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.

Denali As Seen From Thorofare Ridge Trail, Denali National Park, 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

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

Coyote (canis latrans) hunts in autumn colors in denali national park, Alaska united states of america

Close-Up Of Male Willow Ptarmigan Changing From Winter To Breeding Plumage Near Savage River, Denali National Park & Preserve, Interior Alaska, Spring

Dall Ram (Ovis Dalli) Makes A Long Jump Across The Savage River In Late Summer, Denali National Park And Preserve, Alaska, United States Of America

A Full Curl Dall Sheep Ram Standing On Mount Margaret With Fang Mountain In The Background, Denali National Park And Preserve, Interior Alaska, Spring

Bull Caribou (Rangifer Tarandus Caribou) Feed In A Spruce Bog Near Wonder Lake, Denali National Park And Preserve, Alaska, United States Of America

American Flag In Denali National Park With Denali In The Background, Interior Alaska In Summertime, Alaska, United States Of America

Gray Wolf (Canis Lupus) Walking On Autumn Colored Tundra, Denali National Park And Preserve, Interior Alaska, USA

Grizzly bear (Ursus arctos horribilis) sow and cub on tundra, Denali National Park and Preserve; Alaska, United States of America

The American Flag flys at the Eielson Visitor Center. Also seen is a rare set of 2 bull moose antlers locked together (the bulls likely died as they couldn't get unlocked). Denali National Park and Preserve, Interior Alaska; Alaska, United States of America

Snowshoe hare (Lepus americanus) changing to summer colours, Denali National Park and Preserve; Alaska, United States of America

A Red fox (Vulpes vulpes) stops to sniff a bush of bluebells (Hyacinthoides) before continuing his hunt along the road, Denali National Park and Preserve; Alaska, United States of America

A Cache In Denali National Park Near An Old Cabin That Is Occupied During The Summer By A Park Worker, Alaska, United States Of America

Immature light coloured grizzly bear (Ursus arctos hornbilis), Denali National Park and Preserve; Alaska, United States of America

Cow moose (Alces alces) with rare triplet calves try to cross the Park Road in a rainstorm, however, turned back and went into the woods possibly because of the traffic, Denali National Park and Preserve; Alaska, United States of America

Dall Sheep rams (Ovis dalli) grazing on grass in the high country in Denali National Park and Preserve in Interior Alaska in autumn. Rams often travel in groups during this pre-rut time of year, Alaska, United States of America

A Bull Moose Stands In The Middle Of Denali Park Road, In Denali National Park And Preserve, With The Mountains In The Background In Autumn, Alaska, United States Of America

Savage River And The Landscape In The Rocky High Country, Denali National Park And Preserve, Interior Alaska, Alaska, United States Of America

Willow Ptarmigan male (Lagopus lagopus) turning into his summer colours from his white winter's coat, Denali National Park and Preserve; Alaska, United States of America

The Aurora Borealis (Northern Lights) And Stars Circling Above The Sign Marking The Entrance To Denali National Park And Preserve, Alaska, United States Of America

Caribou (Rangifer Tarandus Caribou) Antlers On The Grass With Snow Capped Mountains In The Background, Denali National Park And Preserve, Central Alaska, Alaska, United States Of America

Restricted area sign entering sable pass covered in snow in autumn denali national park, Alaska united states of america

Dall Ram (Ovis Dalli) In Denali National Park And Preserve, Alaska, United States Of America

Grizzly bear (Ursus arctos horribilis) sow and cub on tundra, Denali National Park and Preserve; Alaska, United States of America

Grizzly bear (Ursus arctos) walking in brown grass looking at the camera, Denali National Park and Preserve, interior Alaska, Alaska, United States of America

Grizzly bear (Ursus arctos) walking in brown grass looking at the camera, Denali National Park and Preserve, interior Alaska, Alaska, United States of America