Mount Logan

Mount Logan is the highest mountain in Canada and the second-highest peak in North America after Denali, rising 5,959 meters in southwestern Yukon within Kluane National Park and Reserve, less than 40 kilometers north of the Alaska border. Named for geologist Sir William Edmond Logan, founder of the Geological Survey of Canada, the mountain is believed to have the largest base circumference of any non-volcanic mountain on Earth, with a massif carrying eleven peaks above 5,000 meters, and ranks as the sixth most topographically prominent peak in the world. Tectonic forces continue to push it upward at about 0.35 millimeters a year. Conditions on its 5,000-meter plateau are extreme, with winter temperatures near minus 45 degrees Celsius and ice caps up to nearly 300 meters thick where snowmelt is minimal.