1964 Map of Grass Lake

About this map

Union Center and Pumpkin Center anchor this agricultural landscape in Minnehaha County during the mid-1960s. The map illustrates a glaciated terrain defined by numerous water bodies and drainage systems, including Grass Lake, Lost Lake, and the marshy expanses of Rehfeldt Slough and Engelhardt Slough. Human activity is concentrated along section-line roads, where small community hubs like Midwest Sch No 71 and the St Joseph Ch served the surrounding farmsteads. The southern portion of the survey is dominated by the prominent elevation of Rocky Ridge, while waterways such as Fivemile Creek and Long Creek snake through the townships of Humboldt and Wellington. This topographic study provides a clear view of the rural South Dakota infrastructure before significant modern expansion, highlighting localized landmarks like the Gravel Pit and a Radio Tower.