What is a watershed? After you learn what a
watershed is, It is important that you understand how to determine watershed boundaries and become familar with our state's
topographic maps. West Virginia has 32 watersheds divided according to hydrologic unit codes (HUC)
that contribute to the Chesapeake Bay and the
Gulf of Mexico. The waters west of the
eastern continental divide flow into the
Ohio River. The Ohio joins the
Mississippi River at Cairo, IL. The Mississippi flows into
the Gulf of Mexico at New Orleans, LA. The eastern continental divide also changes the course of five of our eastern rivers towards the
Potomac River. The Potomac enters the Chesapeake Bay southeast of
Washington DC. A few streams in the southeastern corner of the state flow towards the James River.
Use the tools below to learn more about your local, state and US watersheds. Click-Here to view a Story Map that describes a selection of siginificant West Virginia water bodies.
National Map Viewer: USGS geospatial map that provides data visualizations, downloadable files and the ability create personalized maps
Waters GeoViewer displays: Snapshot of EPA Office of Waters Program data using a map interface
WV Map - Public gateway to online mapping resources in the mountain state. It provides access to a wide vareity of geographic data from the Internet
- WVDEP's TAGIS/GIS mapping tools
- WVHUC-ANcodes: A spreadsheet tool with containing all basins within West Virginia. Searchable by stream name, stream and HUC codes.
- WV GIS Technical Center: Watershed boundary data set
Watershed Map: Click anywhere on the map (not including Alaska) and it will calculate the watershed for that point.
Large watershed (i.e. Colorado River) are problematic, but small to medium watersheds should show up within a few of seconds.
The website is a work in progress. Go to the about page or email the developer to learn more. Note: works best with Google Chrome.