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Mount Logan
Mount Logan is the highest mountain in Canada and the second-highest peak in North America, after Denali. The mountain was named after Sir William Edmond Logan, a Canadian geologist and founder of the Geological Survey of Canada (GSC). Mount Logan is located within Kluane National Park and Reserve〔 in southwestern Yukon, less than north of the Yukon/Alaska border. Mount Logan is the source of the Hubbard and Logan Glaciers. Logan is believed to have the largest base circumference of any non-volcanic mountain on Earth (a large number of shield volcanoes are much larger in size and mass), including a massif with eleven peaks over .〔〔
Due to active tectonic uplifting, Mount Logan is still rising in height. Before 1992, the exact elevation of Mount Logan was unknown and measurements ranged from . In May 1992, a GSC expedition climbed Mount Logan and fixed the current height of using GPS.〔
Temperatures are extremely low on and near Mount Logan. On the 5,000 m high plateau, air temperature hovers around in the winter and reaches near freezing in summer with the median temperature for the year around . Minimal snow melt leads to a significant ice cap, reaching almost in certain spots.〔
==Peaks of the massif==
The Mount Logan massif is considered to contain all the surrounding peaks with less than of prominence, as listed below:
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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