2015 Map of Trail City SW

About this map

The Moreau River carves a winding path through the center of this Dewey County landscape, defining the topography of the region. The map captures the river as it flows eastward toward the expansive Lake Oahe, which borders the northeastern edge of the quadrangle. This area is characterized by a high density of named drainage systems, including Handboy Cr, Marshall Cr, and Veo Cr, which feed into the main river channel. The presence of Bia-3 and Promise Rd indicates the primary transit routes through this rural territory, providing essential links between remote homesteads and larger settlements beyond the map's borders. For researchers, these local roads and watercourses offer a clear view of how the natural geography influenced the development of transit and land use in this part of South Dakota.