Alton Town Docks Location 26-40 Mt Major HighwayAltonNH03810 Next Event Annual Alton Bay Boat Show - Saturday, August 08, 2026 - 9:00 am - 12:00 pm Loading Map.... 26-40 Mt Major Highway - AltonEvents 43.472133 -71.236639 Upcoming Events Annual Alton Bay Boat Show - Saturday, August 08, 2026 - 9:00 am - 12:00 pm
