Real-time kinematic global navigation satellite systems equipment was used to map features of wetlands at six locations of interest to the Lower Brule Sioux Tribe. Items mapped include general cross-sections (primarily to show elevation differences); man-made features such as access roads, outlet control structures, and water-supply pipes; vegetation features such as edge of cattails or food plots, trees or tree clusters; and hydrologic features like edge of water, springs, and high water marks.