Using the USGS watersheds data, as well as 2-foot contour intervals from Summit County, one-half square mile watersheds were interpreted from hard copy maps printed at 1:750 scale. The watershed maps were then soft-copy digitized in ArcView to create the shapefile. Area and perimeter data were calculated using the ArcView "calculate geometry" script. Acreage and square mile attribute data were then added to the attributes from the area calculated.