New Hampshire's oldest state park, Miller revolves around Pack Monadnock, a 2290ft peak not to be confused with its better-known neighbor, Mt Monadnock. The park has three easy-to-moderate paths to the summit; you can also access the 21-mile Wapack Trail here. Miller State Park is about 4.5 miles east of Peterborough along NH 101. A self-service pay box (where you can pay the park fee by putting money in the slot) exists for days and times outside the standard hours.