San Juan River (Colombia)

Río San Juan
Rivers in Colombia. The mouth of the San Juan is near the center of the country's Pacific coast
Country	Colombia
Region	Chocó Department
Basin features
Main source	Cerro Caramanta, West Andes
River mouth	Pacific Ocean near Buenaventura
Physical characteristics
Length	380 km (240 mi)

The San Juan River (Spanish: Río San Juan) is an important river of Colombia that flows into the Pacific Ocean through the Chocó Department. It is approximately 380 kilometres (240 mi) and drains a watershed of 2,100 square kilometres (810 sq mi). The river drains into a large delta that covers nearly 300 square kilometres (120 sq mi).

The river begins on Cerro Caramanta in the West Andes. The delta is due north of Bahía Málaga and Buenaventura.

Monthly average flow of San Juan River ( m³/second) measured at Penitas station
Data from 25 years

Coordinates: 4°02′42″N 77°26′29″W / 4.04500°N 77.44139°W / 4.04500; -77.44139