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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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High thin clouds top the summit of Mount Denali in early summer. Early summer is peak climbing season on Denali, with most groups attempting the West Buttress route on the south side of the mountain.
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Lenticular clouds form as high winds scour the summit of Mount Denali in summer. Lenticular clouds form when stable, moist air flows over a mountain range.
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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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Brilliant alpenglow lights the North Face of 20,310' Mount Denali at one a.m. on a clear spring morning. The massive icy face is also called the Wickersham Wall, in honor of Judge James A. Wickersham, who organized and led the first attempt on the summit in 1903. The attempt failed due to avalanches and technical climbing difficulties.
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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