|Adjacent bodies of water||Pacific Ocean|
Sears Rock (sometimes Sear's Rock) is a small sub-surface rock about 0.7 miles (1.1 km) west of Rodeo Beach in the Pacific Ocean off Marin County, California. It is the highest point of the larger Centissima Reef, a sub-surface navigation hazard east of the Bonita Channel, although some reports refer to the two as separate features.
A 1908 report on San Francisco Bay stated that a survey was then in progress to investigate the cost of removing both Sears Rock and Centissima Reef, along with Mission Bay Rock and Sonoma Rock, near Mission Rock in San Francisco Bay.In 1922, Representative Julius Kahn told a congressional committee that neither Sears Rock nor Centissima posed a navigation hazard as they had been blasted several years previously: "They are not visible, neither of them. The Sear's was blasted to a depth of 40 feet some five or six years ago. It is never visible at all. There are some people who think that it ought to be blasted to a depth of 45 feet, but the men who navigate the vessels think 40 feet for the present time a sufficient depth."
San Francisco Bay is a shallow estuary in the US state of California. It is surrounded by a contiguous region known as the San Francisco Bay Area, and is dominated by the large cities of San Jose, San Francisco and Oakland.
The Intracoastal Waterway (ICW) is a 3,000-mile (4,800 km) inland waterway along the Atlantic and Gulf of Mexico coasts of the United States, running from Boston, Massachusetts, southward along the Atlantic Seaboard and around the southern tip of Florida, then following the Gulf Coast to Brownsville, Texas. Some sections of the waterway consist of natural inlets, saltwater rivers, bays, and sounds, while others are artificial canals. It provides a navigable route along its length without many of the hazards of travel on the open sea.
USS Nautilus (SF-9/SS-168), a Narwhal-class submarine and one of the "V-boats", was the third ship of the United States Navy to bear the name.
USS San Francisco (SSN-711) is a Los Angeles-class nuclear submarine, the third ship or boat of the United States Navy to be named for San Francisco, California.
The Port of Oakland is a major container ship facility located in Oakland, California, in the San Francisco Bay. It was the first major port on the Pacific Coast of the United States to build terminals for container ships. It is now the fifth busiest container port in the United States, behind Long Beach, Los Angeles, Newark, and Savannah. Development of an intermodal container handling system in 2002 culminated over a decade of planning and construction to produce a high volume cargo facility that positions the Port of Oakland for further expansion of the West Coast freight market share.
USS S-32 (SS-137) was an S-class submarine of the United States Navy.
USS Southard (DD-207/DMS-10) was a Clemson-class destroyer in the United States Navy during World War II. She was the second Navy ship named for Secretary of the Navy Samuel L. Southard (1787–1842).
The Port of San Francisco is a semi-independent organization that oversees the port facilities at San Francisco, California, United States. It is run by a five-member commission, appointed by the Mayor and approved by the Board of Supervisors. The Port is responsible for managing the larger waterfront area that extends from the anchorage of the Golden Gate Bridge, along the Marina district, all the way around the north and east shores of the city of San Francisco including Fisherman's Wharf and the Embarcadero, and southward to the city line just beyond Candlestick Point. In 1968 the State of California, via the California State Lands Commission for the State-operated San Francisco Port Authority, transferred its responsibilities for the Harbor of San Francisco waterfront to the City and County of San Francisco / San Francisco Harbor Commission through the Burton Act AB2649. All eligible State port authority employees had the option to become employees of the City and County of San Francisco to maintain consistent operation of the Port of San Francisco.
Richardson Bay is a shallow, ecologically rich arm of San Francisco Bay, managed under a Joint Powers Agency of four northern California cities. The 911-acre (369 ha) Richardson Bay Sanctuary was acquired in the early 1960s by the National Audubon Society. The bay was named for William A. Richardson, early 19th century sea captain and builder in San Francisco.
Cortes Bank is a shallow seamount in the North Pacific Ocean. It is 96 miles southwest of San Pedro, Los Angeles, 111 miles west of Point Loma, San Diego, and 47 miles southwest of San Clemente Island in Los Angeles County. It is considered the outermost feature in California's Channel Islands chain. At various times during geologic history, the bank has been an island, depending on sea level rise and fall. The last time it was a substantial island was around 10,000 years ago during the last ice age. It is possible that this island was visited by the first human inhabitants of the Channel Islands, most notably San Clemente Island, whose seafaring residents would have been able to see the island from high elevations on clear days.
Roberts Regional Recreation Area (RRRA) is an area adjacent to Redwood Regional Park located in Alameda County next to Oakland, CA and is part of the East Bay Regional Parks (EBRPD). It is across Skyline Drive from the City of Oakland's Joaquin Miller Park. Kaiser Aluminum and Chemical Corp. adopted Roberts Park in 1979, under the newly-developed Adopt-a-Park program, which promised continued funding. This was the first park in EBRPD to be so adopted.
Point Sur Lightstation is a lighthouse at Point Sur, California, 135 miles (217 km) south of San Francisco, on the 361-foot (110 m)-tall rock at the head of the point. It was established in 1889 and is part of Point Sur State Historic Park. The light house is 40 feet (12 m) tall and 270 feet (82 m) above sea level. As of 2016, and for the foreseeable future the light is still in operation as an essential aid to navigation. Point Sur is the only complete turn-of-the-20th-century lightstation open to the public in California. Three-hour walking tours guided by volunteers are available on Wednesdays and weekends throughout the year.
Centissima Reef is the reef which surrounds Sears Rock west of Rodeo Beach in the Pacific Ocean off Marin County, California. Some early reports refer to Centissima Rock and Sears Rock as separate sub-surface navigation hazards, but present-day nautical charts show Sears Rock as part of the larger Centissima Reef.
The Rock of Ages Light is a U.S. Coast Guard lighthouse on a small rock outcropping approximately 2.25 miles (3.62 km) west of Washington Island and 3.5 miles (5.6 km) west of Isle Royale, in Eagle Harbor Township, Keweenaw County, Michigan. It is an active aid to navigation.
Wreck Alley also known as "Sunken Harbor" is an area a few miles off the coast of Mission Beach, San Diego, California with several ships intentionally sunk as artificial reefs and as Scuba diving attractions for wreck divers.
The Stannard Rock Light, completed in 1883, is a lighthouse located on a reef that was the most serious hazard to navigation on Lake Superior. The exposed crib of the Stannard Rock Light is rated as one of the top ten engineering feats in the United States. It is 24 miles (39 km) from the nearest land, making it the most distant lighthouse in the United States. It was one of the "stag stations", manned only by men, and had the nickname "The Loneliest Place in the World".
Huron Island Light is a lighthouse on Lake Superior near Big Bay, Michigan. It was listed on the National Register of Historic Places as Huron Islands Lighthouse in 1975. It is on one of the Huron Islands Wilderness.
Sue H. Elmore was a steamboat built for service on the coast of Oregon and southwest Washington. From 1900 to 1917, the vessel's principal route ran from Portland, Oregon down the Columbia River to Astoria, and then west across the Columbia Bar, then south along the Oregon coast to Tillamook Bay. Once at Tillamook Bay, Sue H. Elmore was one of the few vessels that could reach Tillamook City at the extreme southern edge of the mostly very shallow bay. After this Sue H. Elmore was sold, being operated briefly in Puget Sound under the name Bergen, and then for many years, out of San Diego, California as a tugboat under the name Cuyamaca. During World War II Cuyamaca was acquired by the U.S. Army which operated the vessel as ST-361. Afterwards the army sold ST-361 and the vessel returned to civilian ownership, again under the name Cuyamaca. In 1948 Cuyamaca sank in a harbor in Venezuela, but was raised and by the early 1950s, was owned by one A. W. Smith, of Pensacola, Florida. This vessel's former landing place in Tillamook, Oregon is now a municipal park named after the ship.
In 1851, the U.S. Army Corps of Engineers led by General John Newton began to clear obstacles from Hell Gate, a strait in New York City's East River, with explosives. The operation would last 70 years. On September 24, 1876, the Corps used 50,000 pounds (23,000 kg) of explosives to blast the rocks, which was followed by further blasting. The process was started by excavating under Hallets reef from Astoria. Cornish miners assisted by steam drills dug galleries under the reef, which were then interconnected. They later drilled holes for explosives. A patent was issued for the detonating device. After the explosion the rock debris was dredged and dropped in a deep part of the river, this was not repeated at the later Flood rock explosion.
Blossom Rock was a serious navigational hazard to sailing ships entering or leaving San Francisco Bay in the 19th century. It was formally reported by Captain F. Beechey of the Royal Navy ship HMS Blossom in 1827.
|This Marin County, California–related article is a stub. You can help Wikipedia by expanding it.|