The first new campground in the New Hampshire State Park System in over 40 years has opened at Gilson Pond Campground! This new family camping area opened July 9, 2010, at Monadnock State Park and is located just down the road from the park headquarters area at 585 Dublin Road, Jaffrey, NH 03452. The new campground has 35 campsites that can accommodate tents and pop-ups, plus 5 remote hike-to sites. A new bathhouse with showers and playground complete this facility. There are several trails leaving the area that lead to the summit of Mount Monadnock or shorter hikes around the state park. Monadnock Base Headquarters has sites open during the off-season for walk-in camping from November to May.

Monadnock State Park is located in and around the 3,165-ft. Mount Monadnock. The park is surrounded by thousands of acres of protected highlands. In 1987, Mount Monadnock was designated a National Natural Landmark. The park offers year-round recreational opportunities.

Monadnock State Park is open year-round unless closed or restricted by posting. While the staff is present around the park daily, limited visitor services and amenities are provided and day-use fees are required through the winter season only on weekends and holidays.