Historical shoreline traces of Lake Sharpe near Lower Brule, South Dakota, 1966-2010

The 1966 USGS 7.5 minute quadrangle map and aerial imagery available for the years of 1991, 2004, 2005, 2006, 2008, and 2010 was used to trace the shoreline of Lake Sharpe near Lower Brule, South Dakota. The Heads-up digitizing in ArcMap was used to trace shorelines from the 1966 quadrangle map and the aerial imagery. The resulting shoreline trace lines were saved in shapefile format. This work was completed by the U.S. Geological Survey in cooperation with the Lower Brule Sioux Tribe Environmental Protection Office.