What is rio sumpul el salvador?

Rio Sumpul is a river in El Salvador that serves as a natural border between El Salvador and Honduras. It is approximately 56 miles long and its source is in the Chalatenango Department of El Salvador. The river flows through the municipalities of Dulce Nombre de María, San Ignacio, and Las Vueltas, before reaching the border with Honduras. Rio Sumpul has been a site of conflict between El Salvador and Honduras in the past, particularly during the 1969 Football War. It is also a popular destination for ecotourism and outdoor activities such as hiking and birdwatching.