University of Missouri Extension Logo
Maps
Reports
Resources
Support
Watershed Boundary Dataset, 12-Digit Hydrologic Units
18 Mar 2020

Watershed Boundary Dataset, 12-Digit Hydrologic Units

The 12-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the sixth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with … Continued

FEMA Flood Hazard Zones
18 Mar 2020

FEMA Flood Hazard Zones

The Flood Hazard Zones are extracted from the National Flood Hazard Layer, which is a database that contains FEMA’s flood hazard map data. The database contains flood hazard information and supporting data used to develop the information. The primary flood … Continued