Zulia River () is a river in Venezuela and Colombia. It is a tributary of the Catatumbo River. The Zulia forms a small part of the international boundary between the two countries. Zulia is a state in northwestern of Venezuela surrounded by the border of gulf of Venezuela and west of Colombia. Zulia is one of the 23 state of Venezuela. The State capital is Maracaibo. References External links Rivers of Colombia Rivers of Venezuela Maracaibo basin Colombia–Venezuela border International rivers of South America Border rivers