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 Reserve in southwestern Yukon, less than 40 km (25 mi) north of the Yukon–Alaska border. Mount Logan is the source of the Hubbard and Logan glaciers. Although many shield volcanoes are much larger in size and mass, Mount Logan is believed to have the largest base circumference of any non-volcanic mountain on Earth, including a massif with eleven peaks over 5,000 m (16,000 ft).
Mount Logan from the southeast
Mount Logan from the North East, as seen from Kluane Icefield
A climber on the knife ridge (east ridge)
Denali is the highest mountain peak in North America, with a summit elevation of 20,310 feet (6,190 m) above sea level. It is the tallest mountain in the world from base-to-peak on land, measuring 18,000 ft (5,500 m), and Earth's highest mountain north of 43°N. With a topographic prominence of 20,194 feet (6,155 m) and a topographic isolation of 4,621.1 miles (7,436.9 km), Denali is the third most prominent and third-most isolated peak on Earth, after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, Denali is the centerpiece of Denali National Park and Preserve.
From the north, with Wonder Lake in the foreground
Hudson Stuck and Harry Karstens, co-leaders of the first successful expedition of four to reach the summit of Denali in 1913, the other members of the expedition being Robert G. Tatum and Walter Harper
High camp (17,200 ft or 5,200 m) of the West Buttress Route pioneered by Bradford Washburn, photographed in 2001
Denali's West Buttress (lower left to upper right), August 2010