| Herrera River | |
| Mouth Location: | Herreras, Río Grande, Puerto Rico |
| Subdivision Type1: | Commonwealth |
| Subdivision Name1: | Puerto Rico |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Río Grande |
| Source1 Elevation: | 1558 ft |
The Herrera River (Spanish; Castilian: Río Herrera) is a river of Río Grande, Puerto Rico. It begins at barrio Ciénaga Alta, in Río Grande and travels through Loiza, Puerto Rico, another municipality. It begins at an elevation of 1558abbr=offNaNabbr=off above sea level. It has an approximate length of 10abbr=offNaNabbr=off from its source until it empties into the Atlantic Ocean north of Puerto Rico between the towns of Loíza and Río Grande. It runs generally from south to north.[1] [2]