The Byam Martin Mountains on Bylot Island were climbed by Pat Biard and then Ben Farris in 1954, including Mount Thule. In 1963 British explorer Bill Tilman traversed the island, but did not climb any of the larger peaks. In 1977, a Canadian expedition of Rob Kelly and others climbed 20 peaks of Bylot Island, and in 1984 Mike Schmidt with others climbed 28 peaks, including 16 first ascents.