Devils Thumb,[1][2] or Taalkhunaxhkʼu Shaa in Tlingit, is a mountain in the Stikine Icecap region of the Alaska–British Columbia border, near Petersburg.

Devils Thumb is part of a group of striking, difficult rock peaks on the western edge of the Stikine Icecap.

The most famous feature on the Devils Thumb among climbers is its Northwest Face, rising 6,700 ft (2,042 m) from the Witches Cauldron at its base to the summit, at an average angle of 67 degrees.

[4] In 1977, author Jon Krakauer climbed the East Ridge of the Devils Thumb, a feat described in detail in his book Eiger Dreams: Ventures Among Men and Mountains.

In 2024, Alex Honnold and Tommy Caldwell successfully scaled all 5 peaks in just under 12 hours, completing the first ever single day traverse of the Devil’s Thumb skyline.