Mount Saint Elias, the second-highest mountain in both Canada and the United States, stands on the Yukon and Alaska border about 26 miles southwest of Mount Logan, the highest mountain in Canada. The Canadian side of Mount Saint Elias forms part of Kluane National Park and Reserve, while the U.S. side of the mountain is located within Wrang…Mount Saint Elias, the second-highest mountain in both Canada and the United States, stands on the Yukon and Alaska border about 26 miles southwest of Mount Logan, the highest mountain in Canada. The Canadian side of Mount Saint Elias forms part of Kluane National Park and Reserve, while the U.S. side of the mountain is located within Wrangell-St. Elias National Park and Preserve.