Mattawamkeag Wilderness Park & Campground Town: Mattawamkeag Address: PO Box 5 153 Mattawamkeag Wilderness Park Rd, Mattawamkeag, ME 04459 Phone: 888-724-2465 Website: http://www.mwpark.com/ Open: 28-May-17-Sep Sites: 65 Max Amperes: 30 Max RV Length: 35' Facilities: tenting, full hookups, dump station, store, laundry, recreation hall, boating, fishing, pets, slideouts Region: Katahdin/Moosehead