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Taken from about the 11,000' level, this photo documents Karstens Ridge on the left horizon. Located at the head of the Muldrow Glacier, the ridge leads upward and around the Harper Icefall
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A Cessna belonging to Kantishna Air Service flies above the Peters Glacier as it approaches the Wickersham Wall on Mount Denali.
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Lowland clouds form along the base of Pioneer Ridge and Mount Denali as the autumn day draws to a close. The cool air at the base of the mountain forms low clouds and fog.
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Sunset on the North Face of Mount Denali as captured from a small plane. The face is called the Wickersham Wall in honor of the leader of the 1906 summit attempt.
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Sunset colors bathe Pioneer Ridge on the east edge of the Wickersham Wall, Mount Denali, The ridge named for pioneer climbers is a challenging climbing route on the north side of the mountain
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Just at sunset, a full moon rises above the Alaska Range Mountains bathed in alpenglow. Alpenglow is the colored light that filters through the atmosphere late and early in the day
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During an autumnal rutting battle, two prime bull moose locked their antlers together and were unable to break apart. How long it took the struggling animals to die is undetermined. Perhaps the bulls died of exhaustion,
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On an early September day, a bull caribou forages the open tundra, Mount Denali in the distance. Bull caribou shed the velvet covering from their antlers in late August
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As a rainstorm passed, revealing the Alaska Range and Mount Denali, a cow moose emerged from the taiga and began to feed in the tranquil waters.
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Mount Denali, viewed above caribou antlers near the Eielson Visitor Center. Bull caribou shed their antlers every year, but this complete set was recovered from a wolf kill.
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Morning light breaks through the clouds and traces Pioneer Ridge on Mount Denali, North America's highest peak. Pioneer climbers seeking the summit attempted this ridge
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Summer rains are common in the Alaska Range Mountains and over the surrounding tundra and taiga. A storm began to break up at 10pm and the sunlight broke through.
