Mount Bigelow (also called the Bigelow Range and Bigelow Mountain) is a long mountain ridge with several summits. It is located in Franklin County and Somerset County, Maine. It is one of Maine's highest summits. The mountain is named after Major Timothy Bigelow who climbed the rugged summit in late October 1775 "for the purpose of observation." Major Bigelow was one of Colonel Benedict Arnold's four division commanders during the 1775 Invasion of Canada.