3 datasets found

Created from USGS 7.5 minute Topographic Quadrangles. MIRIS digital base maps used as control reference. Identifies watershed boundaries and the direction of the water flow.

This table includes the code definitions for the Attribute field in the National Wetlands Inventory LLWFA dataset. This field consists of several sub-codes that interact with...

This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the conterminous United States. These data delineate the areal extent of...