[1] Mining is a major economic activity in the area and there are medium-scale international operations in the area.

[2] Illegal dredging and clear cutting practices associated with mining cause some damage to the Oko area.

[3] In 1999, the bones of a megatherium, an extinct gigantic sloth, were discovered by miners around Omai and the Oko Creek, Cuyuni River.

[4] A model of the megatherium was created and put on display at the Guyana National Museum.

This article related to a river in Guyana is a stub.