It is a small or medium flow watercourse. Riachuelo, pipe, cove. In Colombia it is a surname of Spanish origin. In Spain it is the name of two towns in Cantabria (Las Rozas de Valdearroyo and Santillana del mar ) and another in Palencia. It is also the name of a municipality in Puerto Rico. Last name of a great salsa singer and composer in Colombia, named Joe Arroyo,