They took over the region around the Black Volta to the north early during Seku's reign and to the south to Boule.
This was most crucial in the 1730 expeditions north of the Black Volta toward the Niger River.
In the early 1980s, local labourers constructed a 1,144-km canal to bring water for irrigation from the Black Volta to the newly constructed Sourou Dam.
Its main tributaries are the Black Volta and the Red Volta.
The river is divided into three parts, called the Black Volta, White Volta and Red Volta.
The Black Volta is one of the country's only two rivers which flow year-round, the other being the Komoé, which flows to the southwest.
The reserve is notable for its Hippopotamus population in the Black Volta.
Yagbum was a city in what is now northern Ghana, near the Black Volta.
Fishing communities of Dagaaba persist along the Black Volta, a de facto boundary of Dagaaba lands.
He turned north adding Techiman, Banda, Gyaaman, and Gonja, states on the Black Volta.