The Volta River is one of the longest rivers in Ghana with a total length of 994 miles (1,599 kilometers). The Volta River is the most important river system in Ghana, a West African country. From Burkina Faso's Bobo-Dioulasso highlands, it runs south into Ghana. The river is divided into three sections: the Black Volta, the White Volta, and the Red Volta.

The Volta River was formed at the confluence of the Black and White Volta rivers' headwaters. It flows south through the country, passing through Lake Volta before emptying into the Atlantic Ocean between the Keta Lagoon Protected Area and the Songor Lagoon Protected Area in the Gulf of Guinea. Lake Volta, where the Volta River flows, is one of the world's largest manmade lakes, having been built in 1965 when the Akosombo Dam was completed. The dam's reservoir aids in the generation of energy for Ghana's citizens via the Volta River Authority, as well as providing a channel for inland water transportation.

Length: 994 miles

The Black Volta, also known as the Mouhoun, is a river in Burkina Faso that flows for 1,352 kilometers (840 miles) to the White Volta near Dagbon, Ghana, at the upper end of Lake Volta. The Black Volta River is the country's second-longest river. The Black Volta originates in Burkina Faso's Cascades Region, close to Mount Tenakourou, the country's highest peak.

The Black Volta's source is in Burkina Faso, and it flows north and east until it turns south, forming the border between Ghana and Burkina Faso, and then between Ghana and Côte d'Ivoire. It is the dividing line between the Savannah and Bono regions of Ghana. The Bui Dam, a hydroelectric power plant built on the river immediately south of Bui National Park, which the river bisects, is located on the river. Lawra and Bamboi are the two largest towns on the river in Ghana, with the latter offering river ferry services.

Length: 840 miles (shared with Burkina Faso and Ivory Coast)

With a total length of 550 miles, the White Volta River ranks third among the longest rivers in Ghana. The river's source is north of Ouagadougou, Burkina Faso's capital, between two massifs, and it flows largely south through Burkina Faso and Ghana until it reaches its mouth at the Lake Volta reservoir. Because Volta is the Portuguese word for a twist, and the Portuguese were the first Europeans to arrive in the area in 1471, the White Volta, like the other Volta rivers, is named after the multiple bends it makes along its path. Daboya and Yapei, two major settlements on the White Volta, are also located in Ghana.

Many villages along the White Volta's banks and elsewhere rely on it for drinking water. It also floods several of the communities along its banks on a seasonal basis. The White Volta originates in northern Burkina Faso, flows through northern Ghana, and empties into Ghana's Lake Volta. The Black Volta and the Red Volta are the two primary tributaries of the White Volta.

Length: 550 miles (shared with Burkina Faso)

The Oti River, sometimes known as the Pendjari River, is a West African international river. It begins in Benin, runs through Togo, and eventually joins the Volta River in Ghana. The Oti River is approximately 520 kilometers long. Its source is between Burkina Faso and Benin, and it runs through Benin and Togo before joining the Volta River in Ghana. Togo's left bank tributaries originate in the Togo Mountains to the south. The Kara River is one of its eastern tributaries, with its confluence near the Ghana–Togo border, where another tributary, the Koumongou River, enters from the south. The Oti River used to flow into the Volta River, but now it goes into Ghana's Lake Volta reservoir.

The river runs across the northern section of Togo, cutting through a savannah-clad basin that is 40 to 50 kilometers wide. The gallery forest that runs along with the river's edge floods on a regular basis. The hot, dry Harmattan wind blows from the north throughout the dry season, which lasts from around November to April. The river's flow is very low at this time of year. The floodplains of the Oti and the Koumongou are 10 and 4 kilometers wide, respectively. During the wet season, these flood extensively, but in the dry season, they become dry, dusty plains with the occasional pond or lake in a depression. During the dry season, cattle graze on the floodplains. There is also some small-scale grain production and game hunting.

Length: 323 miles (shared with Benin, Burkina Faso, and Togo)

With a total length of 249 miles, the Tano River ranks sixth among the longest rivers in Ghana (400 kilometers). The river begins in the Ghanaian town of Techiman and goes through the Ehy Lagoon and the Tendo Lagoon. The river then travels through neighboring Côte d'Ivoire, passing through the Aby Lagoon on its way to the Atlantic Ocean's mouth. Only the last few kilometers of the river run along the Ghana-Côte d'Ivoire international land border before entering Côte d'Ivoire for the remainder of its shorter span.

Miss Waldron's Red Colobus (Piliocolobus badius waldronae), a highly endangered primate, is thought to reside in the wild in the woodland around the Tano Rover and the Ehy Lagoon. The highest Akan God, Taakora, resides near the source of the Tano River, according to local indigenous beliefs of the Akan people, who make up the main ethnic group in both Ghana and Côte d'Ivoire.

Total length: 249 miles (shared with Ivory Coast)