Casei River

Casei River
Río Casei from Puerto Rico Highway 108
Native nameRío Casei (Spanish)
Location
CommonwealthPuerto Rico
MunicipalityLas Marías
Physical characteristics
Source 
 • locationRío Cañas, Las Marías
 • coordinates18°14′53″N 67°04′26″W / 18.2480089°N 67.0737904°W / 18.2480089; -67.0737904[1]
Mouth 
 • location
Añasco River in Casey Abajo, Añasco

The Casei River (Spanish: Río Casei), sometimes also spelled Casey River (Río Casey),[2] is a tributary of the Añasco River (Río Grande de Añasco) that flows through the municipalities of Las Marías, Mayagüez and Añasco in western Puerto Rico. It originates in the mountains of Las Marías, from where it flows northwest towards the Añasco Valley, creating a natural municipal boundary between Las Marías and Mayagüez along its path.[2]

See also

References

  1. ^ U.S. Geological Survey Geographic Names Information System: Río Casei
  2. ^ a b Municipio de Las Marías. (February 2024). Las Marías Plan Final Ordenación Territorial (Redacted Version). Retrieved September 8, 2025, from https://jp.pr.gov/wp-content/uploads/2024/02/Plan-Final-Las-Marias_Redacted.pdf