This Online Watershed Delineation (OWL) tool will delineate the area that flows to a pour point and allow you to send that outline, and the soil and landuse data within the outline to our online models.
Search for or Zoom-in to your area using your ZIP code.
Select "Delineate" button and click on the stream whose watershed you plan to analyze. Your location is sent to our L-THIA engine and the watershed of that point is calculated; then you can run our L-THIA model on it to predict runoff.
We are using a 8 - digit HUC watershed as the largest possible size!