nwi - statewide shapefile of NWI coverages put together by MEGIS; NAWCA codes added by GOMP.
nwi.mdb - statewide personal geodatabase that includes both polygon and attributed line data.
\database - includes "index" of 1:24,000 USGS quadrangles; coastal quads begin with Z.
\tiles\<quadrangle name>\ then coverages: (this data is available in a seamless statewide shapefile and geodatabase). USGS quads of 1980's NWI data.
drainage - Drainage divides delineated using 1:24,000 scale USGS topography (lines only).
drdvd - Drainage divides delineated using 1:24,000 scale USGS topography (polygons).
nwi - National Wetland Inventory (NWI) polygon & arc data.
nwilpd - NWI point data