2022 Map of Armstrong SE

About this map

The East Fork Des Moines River winds through the central portion of this Kossuth County landscape, creating a complex corridor of wetlands and oxbows. The terrain is defined by its sophisticated agricultural water management, most notably seen in the engineered path of Drainage Ditch Number 69 and the preserved area of Greenwood Marsh. Tributaries such as Prairie Cr, Mud Cr, and Calamus Cr feed into the river system, carving through a regular grid of section roads. This survey illustrates the modern intersection of natural prairie hydrology and the intensive drainage systems required for Iowa's high-yield farming, preserving the names of the waterways that have dictated land use in the region for generations.