The forest road route 167 passes on the east side of Nicabau Lake, connecting Chibougamau to Saint-Félicien, Quebec.

The surface of Nicabau Lake is usually frozen from early November to mid-May, however, safe ice movement is generally from mid-November to mid-April.

The mouth of Lake Nicabau is located at: The main hydrographic slopes near Lake Nicabau are: Of Innu origin, the toponymic spelling of this body of water has varied often since the days of New France, including: Nekouba, Nekoubau, Nicoupao, Necoubeau, Nikaubau or Nikabau.

Hudson Bay]] In 1661, the Jesuit fathers Dablon and Druillettes reached the place they identify as Nekouba, describing it as a famous place because of a fair that is held there In the years when all the native people from the area go shopping, a 1661 map showing the missionaries' trip mentions the name of Nekouba, and the names "Nekoubou River" and "Nek8pas Lake" are indicated on 1672 maps respectively.

[2] The toponym "lac Nicabau" was formalized on December 5, 1968, by the Commission de toponymie du Québec.