Title: Encroachments and obstructions in the Chicago River and on the Chicago lake front. Letter from the Secretary of War, transmitting a letter from the Chief of Engineers, United States Army, with report of the officer in charge of the miscellaneous civil section, on encroachments and obstructions in the Chicago River and encroachments on the Chicago lake front
Subjects: Dredging, Lakes
Places: Great Lakes (North America)