The Atengo River, also known as the Chapalagana River, is a river of Mexico. It is a tributary of the Huaynamota River in the southern Sierra Madre Occidental.Alvarado-Hernández, Leticia & Ibáñez-Castillo, Laura & Ruiz Garcia, Agustin & González-Leiva, Fernando & Peña, Vázquez Mario (2020). "Hourly Streamflow Forecasting for the Huaynamota River, Nayarit, Mexico, Using the Discrete Kalman Filter. Agrociencia. 54. 295–312. Its basin is bounded on the east by the Sierra los Huicholes.
See also List of rivers of Mexico
References
Atlas of Mexico, 1975 (http://www.lib.utexas.edu/maps/atlas_mexico/river_basins.jpg). The Prentice Hall American World Atlas, 1984. Rand McNally, The New International Atlas, 1993.