2019 Map of Heron Lake NW

About this map

The Coteau des Prairies plateau dictates the drainage of this prairie landscape along the border of Murray and Cottonwood Counties. The headwaters of the Des Moines River wind through the southern sections of the quadrangle, feeding into a significant Wildlife Impoundment and passing near the wetland margins of Oaks Lake. The map reveals a highly structured agricultural grid, where section lines are traced by an extensive network of rural roads like 330th Ave and 380th St. Local history markers are preserved in the placement of the Emanuel Cem and the Rolling Hills Airport, providing specific coordinates for genealogical research and land-use studies. The terrain is defined by its glacial heritage, alternating between high ground and water-filled depressions like Lake Louisa and Long Lake that characterize this region of southwest Minnesota.