paragraph_text: The North Branch of the Millers River is a river in southwestern New Hampshire and northern Massachusetts in the United States. It is a tributary of the Millers River, which flows west to the Connecticut River, which in turn flows south to Long Island Sound, an arm of the Atlantic Ocean.

paragraph_text: Guajataca River () is a river on the island of Lares, Puerto Rico. It is located in the northwest coast of the island. It flows from the south and drains into the Atlantic Ocean. The name was given by the original inhabitants prior to the arrival of Christopher Columbus.

paragraph_text: Loire-Atlantique (, ; formerly "Loire-Inférieure") is a department in Pays de la Loire on the west coast of France named after the Loire River and the Atlantic Ocean.

paragraph_text: The Irwin River is a river in the Mid West of Western Australia. It was named on 9 April 1839 by the explorer George Grey, while on his second disastrous exploration expedition along the Western Australian coast, after his friend Major Frederick Irwin, the Commandant of the Swan River settlement, and later acting Governor of Western Australia from 1847 to 1848.

paragraph_text: The Libby River is a river in the town of Scarborough, Maine, in the United States. It is tidal in its lower reaches, and it is a tributary of the Scarborough River, joining it just above that river's mouth at the Atlantic Ocean.

paragraph_text: Henry Morton Stanley, who had in 1871 succeeded in finding and succouring Livingstone (originating the famous line ``Dr. Livingstone, I presume ''), started again for Zanzibar in 1874. In one of the most memorable of all exploring expeditions in Africa, Stanley circumnavigated Victoria Nyanza (Lake Victoria) and Lake Tanganyika. Striking farther inland to the Lualaba, he followed that river down to the Atlantic Ocean -- which he reached in August 1877 -- and proved it to be the Congo.

paragraph_text: The Branch River is an long river located in eastern New Hampshire in the United States. It is a tributary of the Salmon Falls River, part of the Piscataqua River watershed leading to the Atlantic Ocean.

paragraph_text: The Sandy River and its tributary the Little Sandy River are short rivers in north-central South Carolina in the United States. The Sandy is a tributary of the Broad River; via the Broad and Congaree Rivers, it is part of the watershed of the Santee River, which flows to the Atlantic Ocean.

paragraph_text: The Tekezé River rises in the central Ethiopian Highlands near Mount Qachen within Lasta, from where it flows west, north, then west again, forming the westernmost border of Ethiopia and Eritrea from the confluence of the Tomsa with the Tekezé at to the tripoint between the two countries and Sudan at . After entering northeastern Sudan at the tripoint it joins the Atbarah River, which is a tributary of the Nile. The Tekezé is perhaps the true upper course of the Atbarah, as the former follows the longer course prior to the confluence of the two rivers.

paragraph_text: The Atbarah River (; transliterated: Nahr 'Atbarah) in northeast Africa rises in northwest Ethiopia, approximately 50 km north of Lake Tana and 30 km west of Gondar. It flows about 805 km (500 mi) to the Nile in north-central Sudan, joining it at the city of Atbarah (). The river's tributary, the Tekezé (Setit) River, is perhaps the true upper course of the Atbarah, as the Tekezé follows the longer course prior to the confluence of the two rivers (at 14° 10' N, 36° E) in northeastern Sudan. The Atbarah is the last tributary of the Nile before it reaches the Mediterranean.

paragraph_text: The Lincoln Mountains is a mountain range in southeastern Alaska, United States, located on the Alaskan side of the Portland Canal between the Salmon River and the Soule River, near the community of Hyder. It has an area of 235 km and is a subrange of the Boundary Ranges which in turn form part of the Coast Mountains.

paragraph_text: The North American river otter (Lontra canadensis), also known as the northern river otter or the common otter, is a semiaquatic mammal endemic to the North American continent found in and along its waterways and coasts. An adult river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). The river otter is protected and insulated by a thick, water - repellent coat of fur.

paragraph_text: Beyeda is one of the woredas in the Amhara Region of Ethiopia. Located in the easternmost point of the Semien Gondar Zone, Beyeda is bordered on the south by the Wag Hemra Zone, on the west by Jan Amora, on the north by Tselemt, and on the east by the Tekezé River which separates it from the Tigray Region. The major town in Beyeda is Dil Yibza.

paragraph_text: Wassaw Sound is a bay of the Atlantic Ocean on the coast of Georgia, United States near Savannah at the mouth of the Wilmington River.

paragraph_text: Tatarka River () is a river in Perm Krai, Russia, a right bank tributary of the Babka River, which in turn is a tributary of the Sylva River. The river is long.

paragraph_text: The East Branch of the Mohawk River is a river in northern New Hampshire in the United States. It is a tributary of the Mohawk River, which flows west to the Connecticut River, which in turn flows south to Long Island Sound, an arm of the Atlantic Ocean.

paragraph_text: Balagas River is a river of northern Ethiopia. A tributary of the Tekezé, its own tributaries include the Balessa and Dorana rivers.

paragraph_text: This is a list of lighthouses in Canada. These may naturally be divided into lighthouses on the Pacific coast, on the Arctic Ocean, in the Hudson Bay watershed, on the Labrador Sea and Gulf of St. Lawrence, in the St. Lawrence River watershed (including the Great Lakes), and on the Atlantic seaboard.

paragraph_text: The Komoé River, or Comoé River. is a river in West Africa. The river originates on the Sikasso Plateau of Burkina Faso, flow through the Cascades de Karfiguéla, forms a short section of the border between Burkina Faso and Ivory Coast until it enters Ivory Coast, where it is the major drainage for northeastern portion of that country before emptying into the Atlantic. The banks of the Komoé are shaded by riparian forests along most of it length providing an important habitat for wildlife and a source of agricultural water. Where reliable floodplains form in Ivory Coast, rice may be grown. A portion of the river in northern Ivory Coast is the source of the vegetative richness that earned that area a UNESCO World Heritage Site designation, Comoé National Park.

paragraph_text: The Orikaka River (also known as the Mackley River) is a river of the West Coast Region of New Zealand's South Island. It flows southwest from the southern end of the Matiri Range before turning south to flow into the Buller River five kilometres to the west of Inangahua.

Question: Who began exploration of the Atlantic coast of the continent Tekezé River is located?
Answer: Henry Morton Stanley