2018 Map of Riverdale South

About this map

Riverdale occupies the northwest corner of this McLean County survey, serving as a structured residential hub north of the Garrison Dam vicinity. The landscape is defined by the rigid grid of the Public Land Survey System, marked by the intersection of townships t146n r84w, t146n r83w, t145n r84w, and t145n r83w. This geometry dictates the modern road network, where long straightaways like 35th Ave NW and 37th Ave NW carve through the high plains. The transition from the town's compact streets, such as Main St, to the wide-open agricultural sections to the south illustrates the area's development as a planned community. Peripheral routes like Co Hwy 16 and 2nd St SW provide the primary east-west transit across this rural prairie terrain, punctuated by small seasonal wetlands and topographic depressions typical of the Missouri Plateau.