This article is about the mountain in New Hampshire. For other mountains with similar names, see Monadnock (disambiguation)
Mount Monadnock, or Grand Monadnock, is a mountain in the New England state of New Hampshire, known for its presence in the writings of Ralph Waldo Emerson and Henry David Thoreau. It is the most prominent mountain peak in southern New Hampshire and is the highest point in Cheshire County, New Hampshire. It has long been known as one of the most frequently climbed mountains in the world.