2012 Map of Glad Valley SW

About this map

Thunder Butte stands as a prominent landmark in this prairie landscape of Ziebach County, overlooking a network of seasonal drainages that define the local geography. The map illustrates a high-plains environment where water is the primary architect of the land, featuring the winding paths of Tourney Cr and Line Cr in the northern reaches. The drainage system of Thunder Butte Cr dominates the southern half of the quadrangle, joined by the smaller Knocker Cr. This 2012 survey by the U.S. Geological Survey reflects the open character of South Dakota's District 1, where the sparse road network follows the section lines of the Public Land Survey System, highlighting the vast distances between rural ranching operations and the enduring importance of named natural landmarks in such an expansive terrain.