Yellowstone Park - ME Town: Sanford Address: 2245 Main Street, Sanford, ME 04073 Phone: 207-324-7782 Open: 15-May-15-Sep Sites: 131 Max Amperes: 30 Max RV Length: 35' Facilities: tenting, full hookups, dump station, store, laundry, recreation hall, swimming pool, other swimming, boating, group area, pets, slideouts, pullthrus, wifi hookup Region: South Coast Sanford-Wells Yellowstone Park where family camping is at its best, is only 10 minutes from the beaches. Sun, fun, swimming and Maine lobster too!