These sample datasets provide examples of information structured in Arc Hydro format.
The San Marcos basin is an 8-digit hydrologic cataloging unit within the Guadalupe Basin in Texas for which both raster and vector Arc Hydro data are presented on this CD-ROM. You can use these data as a sample data set to exercise all the Arc Hydro tools.
Download the San Marcos River Basin sample data here
Geodatabase (.mdb) Flow Direction Grid (.zip) Flow Accumulation Grid (.zip)
The Guadalupe Basin comprises four 8-digit hydrologic cataloging units for which an Arc Hydro dataset with supporting data for all the main components of Arc Hydro, including channels and time series. The Full Arc Hydro Data Model schema was applied to this geodatabase.
Download the Guadalupe River Basin sample data here
Global delineation is a special Arc Hydro procedure for delineating watersheds in large basins using a combination of raster and vector data. The sample data contained here are for hydrologic cataloging units in the Arkansas-White-Red basin in Oklahoma.
Download the Global Delineation data here
Global Delineation Setup <-- No data provided