1971 Map of Lucas

About this map

Lucas stands as a central point of reference in this 1971 survey of Gregory County, situated within the boundaries of the Rosebud Indian Reservation. The landscape is defined by the carved valleys of the North Fork and South Fork Whetstone Creek, which wind through the prairie toward the northeast. This era shows the impact of the Pick-Sloan Plan, with Lake Francis Case appearing in the northeast corner of the sheet, its waters backed up by the Fort Randall Dam. Genealogists can locate family sites such as Lucas Cem and the Petersen Cem, while the map also tracks intricate property and field lines across the upland plateaus between Rush Creek and the river breaks.