2012 Map of Iona

About this map

The small community of Iona sits at the junction of 266th Street and Highway 47, serving as a quiet focal point in the expansive landscape of Lyman County. The terrain transitions from the broad expanse of Gozzard Flat in the north toward the rising elevations of the Iona Hills and the prominent Twilight Butte in the south. This 2012 survey illustrates a landscape defined by ranching and rural life, where water sources like Waterhole Cr and Nicholas Cr meander through the prairie. Near the settlement, Iona Cem provides a local genealogical touchpoint, while Lake Agnes offers a rare permanent water feature in this portion of the South Dakota plains. The map's grid of section roads, including 336th Ave and 340th Ave, underscores the organized agricultural development of the region.