The Arroyata River () is a tributary of La Plata River, located in the municipalities of Cidra and Comerío, Puerto Rico. The river has its source in the hills just south of Cidra Pueblo, in the Sud barrio of that municipality, and flows northwestwardly through Comerío, where it meets La Plata River at Naranjo barrio.Municipio de Cidra. (2021, March 19). Cidra Approved Hazard Mitigation Plan (HMP 210319). Retrieved from https://jp.pr.gov/wp-content/uploads/2021/10/Cidr-Approved-HMP-210319.pdf
Portions of the Arroyata River have been designated an Important Bird Area by BirdLife International since 2007.BirdLife International (2026) Site factsheet: Este Central. Downloaded from https://datazone.birdlife.org/site/factsheet/19896-este-central 14/03/2026
See also List of rivers of Puerto Rico
References
External links USGS Hydrologic Unit Map – Caribbean Region (1974) Ríos de Puerto Rico