Distribution Information 7. Also included are watershed outlet positions and selected gaging station locations. The coverage was originally created to support wetlands mitigation and water quality monitoring programs. All but 250 of the more than 1770 quads for the state were delineated during the late 1970s. Attribute Accuracy Attribute values were subjected to an exhaustive error checking process.
All polygons are closed and lines intersect where intended.
Completeness Data are complete at major and minor watershed levels. Subbasin delineations are inconsistently represented and are not provided with standard identifiers. Watershed entitiy names are complete at the province, major watershed, and basin level. The largest contour interval used during the interpretation process was 20 feet. Undersized watersheds were combined with one or more watersheds to meet the 5 square mile minimum size criteria, although subwatershed boundaries were retained within the original delineation.