Green Tops Campground Green Tops Campground is located between Alton and Wolfeboro, New Hampshire on Roberts Cove, Lake Winnipesaukee. 22 RV sites with full hookups and 18 Alton, NH Businesses Quilling by Sandra White Alton, NH Other Attractions The Dudley House Alton, NH Other Attractions Merrymeeting River Mobile Home Park & Campground Alton, NH Businesses Town of Alton Alton, NH Other Attractions