HUC Code | Watershed Name | Occurrence | Source |
13040201 | Cibolo-Red Light | Historic | NatureServe |
13040202 | Alamito | Current | NatureServe |
13040203 | Black Hills-Fresno | Current | NatureServe |
13040205 | Big Bend | Current | NatureServe |
13040302 | Lower Devils | Current | NatureServe |