The Colotlán River is a river of Mexico. It is a tributary of the Bolaños River, which is part of the Río Grande de Santiago system.

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.