[5] According to the London Encyclopaedia of 1829,[3] this river was once regarded as the western boundary between the Demerara and Essequibo Colony[3] and Spanish Guiana.

[6] Tapakuma is a tributary of the Pomeroon River that was developed into a water conservancy which greatly improved cultivation of rice.

[7] Shell mounds associated with early human burials dated to the pre-ceramic Alaka phase have been unearthed in the area.

[9] In Brett's travelogue, the eastern bank of the mouth of the Pomeroon was called Cape Nassau, and the river's source was in the Imataka Mountains.

He observed various Amerindian tribes settled along the river, including Warao and Arawak, as well as former plantation slaves.