Mount Thor has the world’s greatest uninterrupted vertical drop, measuring 1,250 metres on its west face. It is located in Auyuittuq National Park on Baffin Island, Nunavut, Canada.
The mountain is part of the Arctic Cordillera, a rugged chain of peaks and deep valleys in Canada’s far north. Its granite west face overhangs by about 15 degrees, making the drop especially distinctive rather than simply being a steep straight cliff.
Mount Thor was named for Thor, the Norse god of thunder. The first recorded ascent was made in 1965 by a team from the Alpine Club of Canada, including climbers Eric Durnford and Don Vockeroth.
Mount Thor is not Canada’s highest mountain; that title belongs to Mount Logan in Yukon. Its fame comes from its exceptional cliff geometry and vertical relief, while its isolated Arctic setting adds substantial challenges for climbers and visitors.