3/4 VIEW FROM NORTHWEST - Chicago & Northwestern Railroad Viaduct, Spanning Des Moines River at Chicago & Northwestern Railroad tracks, Boone, Boone County, IA. Content can be used with the following standards: 4th grade SS 4.25 Technological Changes in a lesson on railroad systems and advancements in Iowa. For any use other than instructional resources, please check with the organization that owns this item regarding copyright restrictions.
2018.056.007 [Bridge, Railroad]
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