1954 Map of Mason City

About this map

The Winnebago River and Shell Rock River valleys define this mid-century landscape, anchoring a regional network of agriculture and transport across Northern Iowa and Southern Minnesota. This mid-1970s revision highlights a dense cluster of recreation and conservation areas, including McIntosh Woods St Pk and Clear Lake St Pk on the shores of Clear Lake. The map details the transition from the rolling terrain near Pilot Mound to the prairie expanses preserved at Hayden Prairie State Park.