Culebrinas River
It originates in southwestern Lares for 25 miles (40 km) till it empties into the Mona Passage south of downtown Aguadilla.A stone cross monument was erected to mark the site, but it was destroyed by the 1918 San Fermín earthquake.[5][6] In the 1898 Military Notes on Puerto Rico by the U.S. it is written that Culebrina River "is bounded on the south and east by the Lares Mountain ridge, and on the north by small hills of little interest.From the Lares Mountains it flows from east to west and empties on the west coast north of San Francisco de la Aguada, in the center of the bay formed between Point Peñas Blancas and Point San Francisco.[10] In June 2018, a large project, by the Natural Resources Conservation Service (NRCS) and the Puerto Rico Department of Natural and Environmental Resources (PRDNER), to clear debris from Culebrinas River in Moca was deemed a success.