The Ciujung is a river in the province of West Java and Banten on the island of Java, Indonesia. Primarily in Lebak Regency, the river basin covers an area of 2,022.14 km. The rivers in Banten, the westernmost province of Java, run roughly parallel to each other. The main ones are the Peteh, called the Banten on the lower reaches near the city of Kota B…The Ciujung is a river in the province of West Java and Banten on the island of Java, Indonesia. Primarily in Lebak Regency, the river basin covers an area of 2,022.14 km. The rivers in Banten, the westernmost province of Java, run roughly parallel to each other. The main ones are the Peteh, called the Banten on the lower reaches near the city of Kota Banten, the Ujung, which enters the sea at Pontang, the Durian, which enters the sea at Tanara, the Manceuri, and the Sadane, which rises in the mountainous region of Priyangan and in 1682 formed the border between the Dutch East India Company territory and Batavia. The rivers fan out into deltas near the coast. The Ciujung discharges into the 120 square kilometres of Banten Bay.