United States (USA) - South Dakota - counties of Aurora; Bennett; Bon Homme; Brule; Buffalo; Charles Mix; Clay; Custer; Davison; Douglas; Fall River; Gregory; Haakon; Hanson; Hughes; Hutchinson; Jackson; Jerauld; Jones; Lake; Lincoln; Lyman; McCook; Mellette; Miner; Minnehaha; Moody; Pennington; Sanborn; Shannon; Stanley; Todd; Tripp; Turner; Union; Yankton.

@misc{8777_area_of_use
author=geoepsg_dataset Contributors",
title="United States (USA) - South Dakota - counties of Aurora; Bennett; Bon Homme; Brule; Buffalo; Charles Mix; Clay; Custer; Davison; Douglas; Fall River; Gregory; Haakon; Hanson; Hughes; Hutchinson; Jackson; Jerauld; Jones; Lake; Lincoln; Lyman; McCook; Mellette; Miner; Minnehaha; Moody; Pennington; Sanborn; Shannon; Stanley; Todd; Tripp; Turner; Union; Yankton.",
"url="http://www.opengis.net/def/crs/EPSG/0/8777_area_of_use",
note="[Online; documentation generated at 2025-10-19]"}