Why is the Essequibo River important to Guyana’s geography and wildlife?

The Essequibo River is central to Guyana’s geography and ecology as the country's longest river and its largest waterway between the Amazon and Orinoco rivers.12

Geographical Significance

Rising in the Acarai Mountains on the Brazilian border, the river flows northward for approximately 630 miles (1,010 km) through diverse terrain, including savannas and forests, before reaching the Atlantic Ocean. Its extensive system, which includes major tributaries like the Mazaruni and Cuyuni rivers, drains more than half of Guyana’s landmass. The river also serves as a vital transportation route, navigable by small ocean vessels up to Bartica.12

Wildlife and Biodiversity

The river’s freshwater habitat is a critical component of the region's biodiversity. It supports a wide array of wildlife, notably serving as home to 58 endemic fish species. This rich aquatic environment is integral to the broader biodiverse ecoregion of the hinterland, which remains largely characterized by its natural forest cover.1