Mount Logan is the highest mountain in Canada. It is the second-highest mountain in North America, after Mount McKinley (Denali). The mountain was named after Sir William Edmond Logan. He was a Canadian geologist and the founder of the Geological Survey of Canada (GSC). Mount Logan is in Kluane National Park and Reserve in southwestern Yukon. People think that Logan has the largest base circumference of any non-volcanic mountain on Earth. The massif has eleven peaks over .