Map Viewer
Yes - Layer name: WBD HUC8 Watersheds
When using the map viewer, you will be prompted to either login with your state username and password, or use the public BIOS viewer. All CalFish layers are public layers and do not require a special log-in or state credentials.
CalFish Tabular Data
No - Hydrologic Unit Code data is not available through the CalFish database query.
CalFish Data Downloads
Yes - Download name: Hydrologic units