Mount Alverstone, Mountain peak in Saint Elias Mountains, Alaska and Yukon

Mount Alverstone is a peak in the Saint Elias Mountains that marks the border between Alaska and Yukon Territory. It rises prominently above the surrounding landscape at the meeting point of these two regions.

Named in 1908 for Lord Richard Everard Webster Alverstone, Lord Chief Justice of England from 1900 to 1913 and U.S. Boundary Commissioner in 1903, whose vote on the Alaska boundary commission decided against Canadian claims. The first ascent came in 1951 with Walter Wood's expedition, which also made the first climb of Mount Hubbard; returning, Wood learned his wife Foresta and daughter Valerie had died in a nearby plane crash.

The name, given in 1908, honours Lord Richard Everard Webster Alverstone, Lord Chief Justice of England from 1900 to 1913. He sat on several arbitration commissions, including the Bering Sea fur seal dispute, and as U.S. Boundary Commissioner in 1903 his vote decided the Alaska boundary dispute against Canadian claims. The peak is also designated Boundary Peak 180.

The area is only accessible during warmer months and requires glacier experience and proper high-altitude climbing skills. Expeditions are typically organized through the national parks that manage the Alaska and Yukon sides.

The summit is Boundary Peak 180, where the Alaska–Yukon border makes a sharp turn: it runs south toward the Alaska panhandle and west toward Mount Saint Elias. The peak shares a massif with Mount Hubbard, 3 km away, and Mount Kennedy.