| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cañas River (Ponce, Puerto Rico) |  | Río Matilde | 14,000 | 18.0019106000 | -66.6404508000 | Map | |||||
| Pastillo River |  | Río Matilde | 19,000 | 18.0019111111 | -66.6404527778 | Map |