1834 Irwin, Lt. J.R. - Map and Profile of the proposed Route of the Michigan and Illinois Canal.
Shown here is an excerpt of a map of the proposed Illinois & Michigan Canal territory, drawn by Irwin in 1834 from survey records of the early 1830s by the civil engineers [see] William B. Guyon, Frederick Harrison, Jr., and Henry Belin, and then printed as a government document. The complete map covers territory from Lake Michigan to the Illinois River, while the excerpt shown here concentrates on the Chicago area. The complete map can be viewed in Robert Hollandís book Chicago in Maps. [342a]