The notch was home to the Old Man of the Mountain, a rock formation which collapsed in 2003 but whose profile remains a symbol of the state of New Hampshire.
^The eventual compromise—a narrow, speed-controlled 8-mile stretch—required Congress to pass a special amendment to the standards applied across the rest of the U.S. interstate system. Appalachian Mountain Club: The Battle for Franconia Notch
^ Kimberly A. Jarvis, From the Mountains to the Sea: Protecting Nature in Postwar New Hampshire (University of Massachusetts Press, 2020) online review
Further reading
Kimberly A. Jarvis, Franconia Notch and the Women Who Saved It (Durham: University of New Hampshire Press, 2007.