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1973 Map of Lake Ilo

Name: 1973 Topographic Map of Lake Ilo
Creator: U.S. Geological Survey
Published: 1978
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1978

About this map

Lake Ilo sits at the heart of this landscape, its expansive waters serving as the centerpiece for the Lake Ilo National Wildlife Refuge. The map provides a detailed view of the rural transition between the settlements of Killdeer and Dunn Center during the early 1970s. The region is defined by a network of drainage systems including Spring Creek, Murphy Creek, and Stray Creek, which feed into the central reservoir or meander across the prairie terrain.

Evidence of early local infrastructure is visible via the Burlington Northern railroad corridor and the presence of the Dunn Center Cem and Mormannia Cem. Notable industrial and utility markers such as a Gravel Pit, a Mine, and a Radio Tower illustrate the mid-century development of Dunn County. The map also captures smaller hydrological features like Le Paul Slough and numerous unnamed Springs that supported the local ranching and agricultural economy.