The local resolution basic hydrography dataset is a hybrid dataset developed by the West Virginia GIS Technical Center as part of the effort to create local resolution NHD data for West Virginia. It primarily consists of lines and polygons collected as part of the West Virginia Statewide Addressing and Mapping project. As such, most of the data is current as of the year 2003. This dataset also contains features from the high resolution (24,000 Scale) NHD dataset. See data source Lineage (on this page) and Full Metadata for more information.