Mount Bigelow is a long, multi-summit ridge in western Maine that spans Franklin and Somerset counties and stands among the state’s highest mountains. Named for Major Timothy Bigelow, who climbed it in October 1775 while serving under Benedict Arnold during the Invasion of Canada, the range also overlooks the route of Arnold’s expedition along the Dead River. Its highest summits are West Peak and Avery Peak, with other subpeaks contributing to its distinctive skyline. Crossed by the Appalachian Trail, the range is protected largely within the Bigelow Preserve, created in 1976, and remains important for both its scenic natural character and its Revolutionary War connection.