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2015 Map of Onawa

Name: 2015 Topographic Map of Onawa
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Onawa serves as the primary hub of this Missouri River valley landscape, organized by a rigid grid of agricultural roads and drainage infrastructure. The town's layout features streets named for gemstones and materials, such as Diamond St, Ruby St, and Pearl St, reflecting a structured approach to its early 21st-century development. To the south of the town center lies Onawa Cem, while the Onawa Municipal Airport occupies the southwestern corner of the quadrangle.

The surrounding terrain is defined by its water management systems, including the Garretson Outlet Ditch, Pratt Ditch, and Losey Ditch, which redirect flow across the flat plains. In the northeast, the Little Sioux River meanders near the small settlement of Kennebec, paralleled by the Larpenteur Memorial Rd. This network of ditches and the winding river channel illustrate the persistent efforts to manage the fertile bottomlands of Monona County.