2021 Map of Dallas NW

About this map

Ponca Cr winds through the northern reaches of this landscape in Tripp County, carving a subtle path through the high plains. The terrain is defined by the rigid geometry of the Public Land Survey System, with a dense grid of section lines and local roads like 287th St and 323rd Ave providing access to this agricultural interior. The presence of Hwy 31 and a network of secondary routes such as 327th Ave and 324th Ave highlights the infrastructure required to manage these expansive land tracts. This 2021 topographic record captures the enduring pattern of South Dakota's rural section-line roads and drainage systems, serving as a contemporary reference for land ownership and the natural flow of the watershed.