Subduction also generates an upwelling of molten crust that forms mountain ridges and volcanic islands parallel to the trench. Examples of these volcanic arcs can be seen in the Japanese Archipelago, the Aleutian Islands, and many other locations around this area called the Pacific Ring of Fire.. Trenches are long, narrow and very deep and, while most are in the Pacific Ocean, can be found around the world.
Portland Head Light, South Portland, ME - 1791. One of the most photographed and popular lighthouses in the country because of its beauty and spectacular views, its history and its literary associations. Built by authorization of George Washington: Maineâs oldest light, Portland Head, was originally authorized in 1787 by the Commonwealth of Massachusetts.
The Sandy Hook Lighthouse is the oldest lighthouse in the U.S. Built in 1764, it is still an active aid to navigation. Tours of the lighthouse are offered April through November. Please check for a schedule.