Title: Black Rock Channel and Tonawanda Harbor, N.Y. Letter from the Secretary of War transmitting letter from the Chief of Engineers, United States Army, dated April 15, 1933, submitting a report, together with accompanying papers and illustration, on a preliminary examination and survey of Black Rock Channel and Tonawanda Harbor, N.Y., authorized by the River and Harbor Act approved July 3, 1930
Subjects: Dredging, Hydrography
Places: New York (State)