Cidra River
| Cidra River | |
|---|---|
| Native name | Río Cidra (Spanish) | 
| Location | |
| Commonwealth | Puerto Rico | 
| Municipality | Adjuntas | 
| Physical characteristics | |
| Source | |
| • coordinates | 18°10′46″N 66°44′12″W / 18.1794023°N 66.7365634°W | 
| • elevation | 1440 feet | 
The Cidra River (Spanish: Río Cidra) is a river of Adjuntas, Puerto Rico. Cidra is a tributary to the Río Grande de Arecibo river.