West Quoddy Head, in Quoddy Head State Park, Lubec, Maine, is the easternmost point of the contiguous United States. In 1808 a lighthouse was constructed at the site to guide ships through the Quoddy Narrows. The current tower, with distinctive red-and-white stripes, was constructed in 1858 and is an active aid to navigation. The 3rd order Fresnel lens is the only 3rd order and one of only eight Fresnel lenses still in use on the Maine Coast.
Cape Elizabeth Light is a lighthouse in Cape Elizabeth, at the southwestern entrance to Casco Bay in Maine.
Chatham Lighthouse, known as Twin Lights prior to 1923, is a lighthouse in Chatham, Massachusetts, near the "elbow" of Cape Cod. The original station, close to the shore, was built in 1808 with two wooden towers, which were both replaced in 1841. In 1877, two new towers, made of cast iron rings, replaced those. One of the towers was moved to the Eastham area, where it became known as Nauset Light in 1923.
Wood Island Light is an active lighthouse on the eastern edge of Wood Island in Saco Bay, on the southern coast of Maine. The light is just outside the entrance to Biddeford Pool and the end of the Saco River. The lighthouse is a 47-foot (14 m) conical white tower of granite rubble. The light itself sits 71 feet (22 m) above mean high water. Its automated beacon alternates between green and white every 10 seconds.
The Two Harbors Light is the oldest operating lighthouse in the US state of Minnesota. Overlooking Lake Superior's Agate Bay, the lighthouse is located in Two Harbors, Minnesota. The construction of the lighthouse began in 1891 and was completed the following year, with the light being lit for the first time on April 14, 1892. The first Two Harbors keeper was Charles Lederle and there were normally three keepers assigned to make sure the light was lit every day. The Lighthouse was built to provide safe passage into the Agate Bay Harbor during the early 20th century, as Two Harbors was a major shipping point for the iron ore of the Mesabi Range.
Halfway Rock Lighthouse is a lighthouse located on a barren ledge in Casco Bay, Maine. The lighthouse tower, which has a height of 76 feet (23 m), and the attached ex-boathouse are all that remains, as the other buildings have been taken away in storms. The name "Halfway Rock" comes from the position of the rock which is halfway between Cape Elizabeth and Cape Small, the southwest and northeast extremities of Casco Bay, which are about 18 nautical miles (33 km) apart.
Nauset Light, officially Nauset Beach Light, is a restored lighthouse on the Cape Cod National Seashore near Eastham, Massachusetts, erected in 1923 using the 1877 tower that was moved here from the Chatham Light. It is listed on the National Register of Historic Places. The tower is a cast-iron plate shell lined with brick and stands 48 feet (15 m) high. The adjacent oil house is made of brick and has also been restored. Fully automated, the beacon is a private aid to navigation. Tours of the tower and oil house are available in summer from the Nauset Light Preservation Society which operates, maintains and interprets the site. The tower is located adjacent to Nauset Light Beach.
North Head Lighthouse is an active aid to navigation overlooking the Pacific Ocean from North Head, a rocky promontory located approximately two miles north of Cape Disappointment and the mouth of the Columbia River, near Ilwaco, Pacific County, in the U.S. state of Washington. It is part of Cape Disappointment State Park.
The New Dungeness Lighthouse is a functioning aid to navigation on the Strait of Juan de Fuca, located on the Dungeness Spit in the Dungeness National Wildlife Refuge near Sequim, Clallam County, in the U.S. state of Washington. It has been in continuous operation since 1857, although the current lighthouse tower is 26 feet (7.9 m) shorter than when first constructed.
Alcatraz Island Lighthouse is a lighthouse—the first one built on the U.S. West Coast—located on Alcatraz Island in California's San Francisco Bay. It is located at the southern end of the island near the entrance to the prison. The first light house on the island was completed in 1854, and served the bay during its time as a Citadel and military prison. It was replaced by a taller concrete tower built in 1909 to the south of the original one which was demolished after it was damaged due to earthquake in 1906. The automation of the lighthouse with a modern beacon took place in 1963, the year Alcatraz closed as the Alcatraz Federal Penitentiary. It is the oldest light station on the island with a modern beacon and is part of the museum on the island. Although when viewed from afar it easily looks the tallest structure on Alcatraz, it is actually shorter than the Alcatraz Water Tower, but as it lies on higher ground it looks much taller.
Cape Mendocino Light was a navigation light at Cape Mendocino, California. The former lighthouse was relocated to Shelter Cove near Point Delgada, California in 1998, and the historic Fresnel lens to Ferndale, California, in 1948. An automated beacon operated for a number of years but was removed in May 2013.
The Highland Light is an active lighthouse on the Cape Cod National Seashore in North Truro, Massachusetts. The current tower was erected in 1857, replacing two earlier towers that had been built in 1797 and 1831. It is the oldest and tallest lighthouse on Cape Cod.
Cape Charles Lighthouse is an octagonal cast iron skeleton tower lighthouse at the mouth of the Chesapeake Bay on Smith Island which was officially removed from service in 2019. It is the tallest lighthouse in Virginia and the second tallest in the United States. This particular tower is the third lighthouse at this location. The first lighthouse at Cape Charles was a 55-foot (17 m) masonry tower completed in 1828. It was quickly deemed inadequate for its important seacoast location due to its low height and poor visibility at sea. It was soon threatened by erosion so in 1864 it was replaced by a 150-foot (46 m) masonry tower built further inland. Located a little more than a mile southwest of the old tower and 600 feet from the shoreline, the impressive 150-foot-tall conical brick tower was similar in appearance to the 1857 Cape May Lighthouse, painted white and topped with a dark brown lantern room. In 1892, a twenty-five-foot red band was painted around the white tower's midsection, about sixty feet up from the base, to make it more visible during the day. By the 1890s, it too was threatened by beach erosion which jetties built to protect it failed to halt, and with the lighthouse now only 300 feet from the ocean and the shoreline eroding at a rate of 37 feet per year it was decided that a third lighthouse needed to be built three quarters of a mile inland.
The Marquette Harbor Light is located on Lake Superior in Marquette, Michigan, a part of the Upper Peninsula. It is an active aid to navigation.
Gay Head Light is a historic lighthouse located on Martha's Vineyard westernmost point off of Lighthouse Road in Aquinnah, Massachusetts.
Egg Rock Light is a lighthouse on Frenchman Bay, Maine. Built in 1875, it is one of coastal Maine's architecturally unique lighthouses, with a square tower projecting through the square keeper's house. Located on Egg Rock, midway between Mount Desert Island and the Schoodic Peninsula, it is an active aid to navigation, flashing red every 40 seconds. The light was listed on the National Register of Historic Places as Egg Rock Light Station in 1988.
Little River Light is a lighthouse on an island at the mouth of the Little River, in Cutler, Maine. A light station was first established at this site in 1846, and the present structure was built in 1876. It is one of the only iron lighthouses in the state, and was listed on the National Register of Historic Places as Little River Light Station on March 14, 1988. The light station is now owned by the American Lighthouse Foundation, which offers overnight stays in the keeper's house, and occasional tours of the property.
An aerobeacon is a light assembly used to create a fixed or flashing signal visible over long distances. It consists of a high intensity electric lamp mounted with a focusing device in a cylindrical housing, which usually is rotated on a vertical axis by an electric motor. The sweep of the narrow beam thus produced gives the flashing effect. Aerobeacons were originally developed for aviation use, mostly as aerodrome beacons, but they also saw extensive use in lighthouses. They were far less expensive to manufacture and maintain than classic glass Fresnel lenses, and much more durable; they could be mounted and exposed to the weather. Historic models include the DCB-24, which used a single parabolic reflector; the DCB-224, a double-beamed version of the DCB-24; and the DCB-36, which used a system of plastic Fresnel type lenses. Manufacturers included Carlisle & Finch in Cincinnati and the Crouse-Hinds Company in Syracuse, New York. Aerobeacons have replaced fragile glass Fresnel lenses in many lighthouses and are still widely used in other applications.
Fort Williams Park is a 90-acre park in Cape Elizabeth, Maine, encompassing numerous historical sites. Famous for having Portland Head Light on its grounds, the park also encompasses the decommissioned and largely demolished United States Army post Fort Williams, which was operational during World War I and World War II.
Rawley Point Light is a lighthouse located in Point Beach State Forest, near Two Rivers, Wisconsin. At 111 feet (34 m) tall, it is the tallest lighthouse on the Wisconsin Shore and it is listed on the National Register of Historic Places.
