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. The expeditionary force passed along the Dead River on the northern edge of the Bigelow Range, now dammed into Flagstaff Lake. The highest summit of Bigelow Mountain is West Peak, at 4,145 ft (1,263 m). Subpeaks include Avery Peak (Myron H. Avery Peak) at 4,088 ft (1,246 m), The Horns at 3,805 ft (1,160 m), Cranberry Peak at 3,194 ft (974 m), and Little Bigelow Mountain at about 3,070 ft (940 m). The Maine Appalachian Trail Club (MATC) maintains the trails on Bigelow Mountain and stations seasonal caretakers at the popular backcountry campsites at Horns Pond and Bigelow Col. Bigelow Mountain is part of the Rangeley-Stratton mountain range, which also includes Sugarloaf Mountain, Crocker Mountain, Saddleback Mountain, Mount Abraham, Mount Redington, and other mountains.

The Bigelow Mountain is located in Maine and is part of the Appalachian Mountains. At 6,145 feet, it is the tallest mountain in the state. The mountain is a popular destination for hikers, who can enjoy views of the surrounding countryside from the summit. The mountain is also home to a variety of wildlife, including black bears, moose, and deer.