National Hydrography Dataset Extract Shapefiles for West Virginia

All shapefiles are in NAD 1983, UTM Zone 17, meters.  All shapefiles extend outside of 
West Virginia's borders and include all intersecting sub-basins, unless specifically 
clipped to the state boundary.  These shapefiles were created from final USGS NHD 
datasets for the 33 sub-basins intersecting West Virginia.  Final NHD datasets may be 
obtained from USGS at:

NHD Home Page: 	http://nhd.usgs.gov/
Direct Data Access:  	ftp://nhdftp.usgs.gov/FOD_Data/High/arc/

Steps used in creation of these datasets:

1.	Downloaded final NHD datasets for each of WV's 33 sub-basins
2.	Sub-basin datasets appended by NRAC into statewide ARC/INFO coverages 
using USGS NHD APPEND routines
3.	Results converted from coverages to shapefiles for more efficient display.  Each 
shapefile contains one feature class (route.drain, route.rch etc) from the original 
NHD appended coverages.

Notes on using these datasets:

For all shapefiles, the APPENDID attribute table field lists the 8 digit USGS sub-basin 
code for the original sub-basin.

Original NHD datasets (not these extracts) should be used if you wish to use flow 
modeling tools, or if you need to consult NHD reach cross-referencing information.

Shapefile details:

Wv_nhd_points_nad83
NHD point features, including gauging stations, 
wells, springs, where mapped.  Attributes include 
feature type (FTYPE) and name if available.

Wv_nhd_region_landmarks_nad83
NHD landmark region features, including other 
polygon features such as dams, lock chambers, 
rapids, area to be submerged, etc.  Attributes 
include FTYPE and name, if available.

Wv_nhd_region_reach_nad83
NHD reach region features (waterbody reaches) 
including mainly lakes and ponds.  Attributes 
include names for some features.  Features do not 
include large rivers. 

Wv_nhd_region_waterbody_nad83
NHD reach waterbody features, including features 
that contain water or through which water flows, 
such as stream/river, lake/pond, swamp/marsh, and 
canal/ditch.  Attributes include FTYPE and name  
(if available).  Features may be divided into several 
polygons (may include dividing lines splitting 
features at quad map borders or at other features 
such as dams, rapids, etc).

Wv_nhd_route_drain_clipped_nad83
NHD route drainage features, clipped to WV state 
border at 1:24,000 map scale.  Attributes include 
FTYPE (no name).  Artificial paths map stream 
flow as stream centerlines through lakes, ponds, 
and wide streams.  One or more "drain" features 
will make up a "reach" feature. 

Wv_nhd_route_drain_nad83
See above, not clipped.

Wv_nhd_route_reach_nad83
NHD route reach features.  Attributes include NHD 
reach code and stream name (from USGS GNIS) 
where available.  Each "reach" feature is made up 
of one or more "drain" features.  Use original NHD 
datasets (not extracts) if you wish to model flow or 
if you need to preserve the drain/reach relational 
database structure.

Contact Info:

Jackie Strager
Natural Resource Analysis Center
West Virginia University
Morgantown, WV  26506-6108
(304) 293-4832 ext.4455
jmstrager@mail.wvu.edu