2020 Map of Peterson Lake

About this map

Lake Williams and Peterson Lake dominate the central basin of this McLean County landscape, where the prairie is defined by a dense network of glacial potholes and larger water bodies. The geography is marked by small, scattered cemeteries that reflect the early rural settlement patterns of the region, including Medicine Hill Cem near the prominent elevation of Medicine Hill and Peace Lutheran Cem farther south. In the southwestern corner, the N Country National Scenic Trail winds through the wetlands and rolling terrain, passing west of Lake Holmes. The map also details a strictly organized grid of rural section roads such as Co RD 27 and Co RD 10, connecting isolated farmsteads and agricultural plots across several townships. This modern survey shows a region where the natural hydrography of lakes like Blue Lake and Pelican Lake remains the primary influence on land use and transit.