Around 3,200 ft. in size, Mount Monadnock is one of New Hampshire's prettiest and tallest attractions. The mountain is gorgeous during any season. You'll love climbing and hiking up the highest point in Cheshire County, NH with family and friends in the spring (the shortest way up is three to four hours roundtrip). In the summer, climb to the top for a nice picnic under the stars. In the fall, the trees change color to make way for winter, which is great for a family photography session. Try skiing or sledding down the mountain in the winter.