HUC Code | Watershed Name | Occurrence | Source |
21010002 | Cibuco-Guajataca | Current | USGS NAS |
21010003 | Culebrinas-Guanajibo | Current | USGS NAS |
21010004 | Southern Puerto Rico | Current | USGS NAS |
21010005 | Eastern Puerto Rico | Current | USGS NAS |
21010006 | Puerto Rican Islands | Current | USGS NAS |