Region 7, the Cuyuni-Mazaruni Region Places Across Guyana Region 7, the Cuyuni-Mazaruni Region guyanagy December 8, 2022 Region 7, also called the Cuyuni-Mazaruni Region, is one of Guyana's ten administrative regions. It is bordered... Read More Read more about Region 7, the Cuyuni-Mazaruni Region