There are three options for searching watersheds.
Enter your 5 digit U.S. postal code to find your watershed. For example 30008, 33912, etc.
- Click any spot on the
to load watershed.
browse all watersheds.
Contact & Feedback
Robots have finally defeated me. Adding reCAPTCHA to the contact form. Goodbye spam.
Added functionality to compare the ranges of two species
Updates to the Harpeth Watershed (05130204) per user feedback
Added in the Redeye Bass splits from 2013. Cahaba Bass, Chattahoochee Bass, Tallapoosa Bass, Warrior Bass & Bartram's Bass
Adding first data set of NANFA submitted locations.
Data provided by
Database built from NatureServe's
Digital Distribution Maps of the Freshwater Fishes of the Conterminous United States, Version 3.0.
Nonindigenous data provided by
USGS Nonidigenous Aquatic Species
NAS Web Services API
Collection occurence data provided by