The Three Brothers is a small reef located off the north coast of Kodiak Island, Alaska, about 2 km east of Shakmanof Point and 2.5 km west of Ouzinkie.
A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water. Many reefs result from abiotic processes, but the best known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and coralline algae.
Kodiak Island is a large island on the south coast of the U.S. state of Alaska, separated from the Alaska mainland by the Shelikof Strait. The largest island in the Kodiak Archipelago, Kodiak Island is the second largest island in the United States and the 80th largest island in the world, with an area of 9,311.24 km2 (3,595.09 sq mi), slightly larger than Cyprus. It is 160 km long and in width ranges from 16 to 97 kilometers. Kodiak Island is the namesake for Kodiak Seamount, which lies off the coast at the Aleutian Trench. The largest community on the island is the city of Kodiak, Alaska.
Alaska is a U.S. state in the northwest extremity of North America, just across the Bering Strait from Asia. The Canadian province of British Columbia and territory of Yukon border the state to the east, its most extreme western part is Attu Island, and it has a maritime border with Russia to the west across the Bering Strait. To the north are the Chukchi and Beaufort seas—southern parts of the Arctic Ocean. The Pacific Ocean lies to the south and southwest. It is the largest state in the United States by area and the seventh largest subnational division in the world. In addition, it is the 3rd least populous and the most sparsely populated of the 50 United States; nevertheless, it is by far the most populous territory located mostly north of the 60th parallel in North America: its population—estimated at 738,432 by the United States Census Bureau in 2015— is more than quadruple the combined populations of Northern Canada and Greenland. Approximately half of Alaska's residents live within the Anchorage metropolitan area. Alaska's economy is dominated by the fishing, natural gas, and oil industries, resources which it has in abundance. Military bases and tourism are also a significant part of the economy.
The reef spans about 550 m in the southwest to northeast direction, and some parts of it uncover about 60 cm. Two rocks at the southwest end uncover by about 1.2 m, and one rock at the northeast end uncovers by about 1 m. There is a light on the southwesternmost rock. A kelp forest extends about 250 yards outh of the light toward Low Island.
A centimetre or centimeter is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1/100. The centimetre was the base unit of length in the now deprecated centimetre–gram–second (CGS) system of units.
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses and to serve as a navigational aid for maritime pilots at sea or on inland waterways.
Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera.
The Coral Sea Islands Territory is an external territory of Australia which comprises a group of small and mostly uninhabited tropical islands and reefs in the Coral Sea, northeast of Queensland, Australia. The only inhabited island is Willis Island. The territory covers 780,000 km2 (301,160 sq mi), most of which is ocean, extending east and south from the outer edge of the Great Barrier Reef and includes Heralds Beacon Island, Osprey Reef, the Willis Group and fifteen other reef/island groups. Cato Island is the highest point in the Territory.
Aleneva is a census-designated place in the Kodiak Island Borough in the U.S. state of Alaska. As of the 2010 census, the population was 37, down from 68 in 2000.
Key Largo is an island in the upper Florida Keys archipelago and is the largest section of the Keys, at 33 miles (53 km) long. It is one of the northernmost of the Florida Keys in Monroe County, and the northernmost of the Keys connected by U.S. Highway 1. Its earlier Spanish name was Cayo Largo, meaning long islet.
Afognak is an island in the Kodiak Archipelago 5 km (3.1 mi) north of Kodiak Island in the U.S. state of Alaska. It is 43 miles (69 km) long from east to west and 23 miles (37 km) wide from north to south and has a land area of 1,812.58 km2 (699.84 sq mi), making it the 18th largest island in the United States. The coast is split by many long, narrow bays. The highest point is 2,546 feet (776 m).
Coast Guard Air Station Kodiak is an Air Station of the United States Coast Guard located in Kodiak, Alaska. The largest in the service's Pacific Area, with a crew of 85 officers and 517 enlisted personnel. The largest Coast Guard Base based on acreage being 23,000 acres. It is a tenant command of Base Support Unit Kodiak, and shares its airfield with Kodiak Airport. The station operates MH-60 Jayhawk and MH-65 Dolphin helicopters, and the HC-130 Hercules fixed-wing aircraft.
Rongel Reef, is a moraine reef in the Emona Anchorage in the eastern parts of Livingston Island in the South Shetland Islands, Antarctica. The reef emerged during a glacier retreat in the late 20th and early 21st centuries.
Lake Hazen is often called the northernmost lake of Canada, in the northern part of Ellesmere Island, Nunavut, but detailed maps show several smaller lakes up to more than 100 km (62 mi) farther north on Canada's northernmost island. Turnabout Lake is immediately northeast of the northern end of Hazen lake. Still further north are the Upper and Lower Dumbell Lakes, with Upper Dumbell Lake 5.2 km (3 mi) southwest of Alert, Canada's northernmost settlement on the coast of Lincoln Sea, Arctic Ocean.
Pedro Bank is a large bank of sand and coral, partially covered with seagrass, about 80 km south and southwest of Jamaica, rising steeply from a seabed of 800 metres depth. It slopes gently from Pedro Cays to the west and north with depths from 13 to 30 metres. The total area of the bank within the 100-metre (328-foot) isobath measures 8,040 square kilometres. The area of a depth to 40 metres is triangular, 70 kilometres long east-west, and 43 kilometres wide. 2,400 square kilometres are less than 20 metres deep. With its islets, cays and rocks, a total land area of 270,000 m2 (2,906,256 sq ft), it is the location of one of the two offshore island groups of Jamaica, the other one being the Morant Cays. The bank is centered at.
The Fox Islands consist of the North Fox and South Fox islands, in Lake Michigan. The uninhabited islands are approximately 17 miles (27 km) northwest of Cathead Point near the tip of the Leelanau Peninsula of Michigan and about 10 miles (16 km) southwest of Beaver Island. The three islands form part of an archipelago. South Fox Island Light was built in 1867 and operated until 1959. Both islands are part of Leelanau County, Michigan, and are administered by Leelanau Township.
Whale Island is an island of the Kodiak Archipelago in the Gulf of Alaska in Kodiak Island Borough, Alaska, United States. It lies off the northern end of Kodiak Island, between it and Afognak Island to the north. It is separated from Kodiak Island by Whale Pass, and from Afognak Island by Afognak Strait. Raspberry Island lies to the west, while Spruce Island lies to the east. Whale Island has a land area of 39.235 km² and is unpopulated.
Annenkov Island is to the west of the main island of South Georgia. The Pickersgill Islands are to its southeast. It is irregularly shaped and 4 miles (6.4 km) long and 650 m (2,130 ft) high, lying 8 miles (13 km) off the south-central coast of South Georgia.
Cay Sal Bank is the third largest and the westernmost of the Bahama Banks. It is located between 23º27'N - 24º10'N and 079º25'W – 080º35'W. In a geographical sense, it is separate from the Bahamas proper as it is much closer to Cuba than to the closest Bahamanian island. It is separated by Santaren Channel from the Great Bahama Bank, the western rim of which is 50 km (31 mi) to the east. The Straits of Florida separate it from the United States mainland and the Florida Keys.
Trident Basin Seaplane Base is a city-owned, public-use seaplane base located in the City of Kodiak, in the Kodiak Island Borough of the U.S. state of United States. This seaplane base is located 4 nautical miles (7 km) northeast of the Kodiak Airport.
Nuussuaq Peninsula is a mainland peninsula in northwestern Greenland, located at the northern end of Upernavik Archipelago, approximately 70 km (43 mi) to the south of Melville Bay. It is much smaller than its namesake in western Greenland.
The Quiniluban Group is a group of islands in Palawan Province of the Philippines situated between the islands of Palawan and Panay in the Sulu Sea. The group is the northernmost in the Cuyo Archipelago, consisting of several islands and rocks. The easternmost of which is a circular group of islands surrounded by reef about 6 nautical miles in diameter. The largest of the circular group is Quiniluban Island. The island group also includes the upscale resort island of Pamican located about 5.6 nautical miles southwest of the circular group, and Manamoc Island located 3.0 nautical miles further southwest of Pamilacan.
The North Carr Reef is a sandstone reef northeast of Edinburgh, on the headland between the Firth of Forth and St Andrews Bay. There have been many ships wrecked on the reef, which lies on the busy shipping lanes into the Forth ports and the River Tay.
The Rukan Islands, also known as the Three Brothers, is a group of three small islands at the south entrance of Durian Strait, in the Riau Islands Province of Indonesia, off the north coast of Sumatra near Singapore. The group extends about 7.2 km north to south, and is surrounded by many dangerous wrecks.
Caribou Island Lighthouse sits on the uninhabited Caribou Island in the eastern end of Lake Superior, 22 miles (35 km) south of Michipicoten Island. It lies entirely within the territorial waters of Canada although only about three miles from the international border between Canada and the United States. It is approximately 3 miles (4.8 km) long and approximately 1 mile (1.6 km) wide.
Moira Sound is a branching inlet on the east side of the southern end of Prince of Wales Island in U.S. state of Alaska. It is situated within the Tongass National Forest.
The Barren Islands are an archipelago in Alaska in the United States. They are the northernmost islands of the Kodiak Archipelago. The largest island of the group is Ushagat Island. The islands have a combined land area of 16.23 square miles and are uninhabited. The largest breeding grounds of seabirds in Alaska are located in the Barren Islands on East Amatuli Island and Nord Island. The archipelago is part of the Alaska Maritime National Wildlife Refuge.
A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.
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