- The Orinoco river originates in the Guiana Highlands near the Venezuela–Brazil border, rising from the Sierra Parima region.
- It flows for about 2,140 km and finally drains into the Atlantic Ocean, forming a wide delta in eastern Venezuela.
- The river flows mainly through Venezuela and briefly forms part of the Venezuela–Colombia border; overall, it is associated with two countries: Venezuela and Colombia.
- Major tributaries include Apure, Meta, Arauca, Guaviare, Caura, Caroní, and Ventuari, which significantly expand its drainage basin.
- The Caroní River, one of its most important tributaries, supports major hydroelectric projects like the Guri Dam, making the Orinoco system vital for Venezuela’s energy supply.
