Radar beacon is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information." Each station shall be classified by the service in which it operates permanently or temporarily.
Point Pinos Lighthouse was lit on February 1, 1855, to guide ships on the Pacific Coast of California. It is the oldest continuously operating lighthouse on the West Coast of the United States and even the lens is original. Alcatraz Island Lighthouse preceded Point Pinos by eight months, but was replaced in 1909 by the expanding military prison. The Point Pinos Lighthouse is still an active United States Coast Guard aid to navigation. On-site museum exhibits and other lighthouse related functions are operated by the city of Pacific Grove, Monterey County, California. The lighthouse is surrounded by the Pacific Grove Municipal Golf Links.
The American Shoal Light is located east of the Saddlebunch Keys, just offshore from Sugarloaf Key, close to Looe Key, in Florida, United States. It was completed in 1880, and first lit on July 15, 1880. The structure was built to the same plan and dimensions as the Fowey Rocks lighthouse, completed in 1878.
The Amelia Island Light is the oldest existing lighthouse in the state of Florida in the United States. It is located near the northern end of Amelia Island in the northeastern part of the state. Its light marks St. Marys Entrance, the inlet leading to St. Marys River, the Cumberland Sound and the harbor of Fernandina Beach, Florida along the Amelia River. The white light flashes every ten seconds which turns red from 344° to 360° when covering the shoal water in the vicinity of Nassau Sound.
East Brother Island Lighthouse is a lighthouse located on East Brother Island in San Rafael Bay, near the tip of Point San Pablo in Richmond, California. It marks the entrance to San Pablo Bay from San Francisco Bay.
The Santa Cruz Surfing Museum is a museum which was established in May 1986 to document the history of surfing. With collections dating back to the earliest years of surfing on mainland United States, the museum houses a historical account of surfing in Santa Cruz, California.
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.
Anacapa Island Lighthouse is a lighthouse in California, United States, on the entrance to Santa Barbara Channel, California. Constructed in 1912, it was the last major light station built on the west coast. Anacapa and several other islands were collectively designated as Channel Islands National Monument in 1938, though the Coast Guard retained responsibility for the Anacapa lighthouse. Now fully automated and unmanned, the light house still operates, but the National Park Service (NPS) is responsible for Channel Islands National Park.
Yerba Buena Lighthouse is a lighthouse in California, United States, in the San Francisco Bay on Yerba Buena Island, California
Carquinez Strait Lighthouse is a lighthouse in California, United States. It was originally approximately 20 miles inland from the mouth of the San Francisco Bay near Vallejo, California.
Los Angeles Harbor Light, also known as Angels Gate Light, is a lighthouse in California, United States, at San Pedro Breakwater in Los Angeles Harbor, California. The lighthouse is listed on the National Register of Historic Places. It is listed as Los Angeles Light in the USCG Lights list. It is the only lighthouse in the world that emits an emerald-colored light.
The New Point Loma Lighthouse is a lighthouse at the southern tip of the Point Loma peninsula in San Diego, California.
Farallon Island Light is a lighthouse on Southeast Farallon Island, California. One of the highest lights in California, it was constructed in 1855 to warn ships approaching San Francisco from the west away from the rocky islands. In later years it was shorn of its lantern, but it remains in use.
Ballast Point Lighthouse was a lighthouse in California, situated on Ballast Point, a tiny peninsula extending into San Diego Bay from Point Loma, San Diego, California. The lighthouse was torn down in 1960; the site is now on the grounds of Naval Base Point Loma. Ballast Point Lighthouse was the last lighthouse displaying a fixed light on the Pacific Coast. An automated light is left in its place and operates on a piling in the water off of the original site.
Point Arena Light is a lighthouse in Mendocino County, California, United States, two miles (3 km) north of Point Arena, California. It is located approximately 130 miles (210 km) north of San Francisco in the Fort Point Group of lighthouses. The lighthouse features a small museum and giftshop. Guided tours of the light station as well as self-guided tours of the grounds are available daily.
Point Conception Light is a lighthouse in Santa Barbara County, California, on Point Conception at the west entrance of the Santa Barbara Channel, California. One of the earliest California lighthouses, it is listed on the National Register of Historic Places on the Gaviota Coast.
Trinidad Head Lighthouse is a historic lighthouse in Trinidad, California. It is 20 miles (32 km) north of Eureka, California, built in 1871.
Solomons Lump Light is a lighthouse in the Chesapeake Bay, the abbreviated remains of a caisson light built in 1895. That structure replaced a screw-pile light built on the same spot in 1875, which in turn superseded the Fog Point Light.
Piedras Blancas Light Station is located at Point Piedras Blancas, about 5.5 miles (8.9 km) west by northwest of San Simeon, California. It was added to the California Coastal National Monument in 2017.
Pigeon Point Light Station or Pigeon Point Lighthouse is a lighthouse built in 1871 to guide ships on the Pacific coast of California. It is the tallest lighthouse on the West Coast of the United States. It is still an active Coast Guard aid to navigation. Pigeon Point Light Station is located on the coastal highway, 5 miles (8 km) south of Pescadero, California, between Santa Cruz and San Francisco. The 115-foot (35 m), white masonry tower, resembles the typical New England structure.
