Email Record: St. Marys Falls Canal, Michigan. Report of the Board of Engineers for Rivers and Harbors Upon Plans and Estimates of Cost of a New Lock at St. Marys Falls Canal, Mich., Submitted by Col. Chas. E. L. B. Davis, Corps of Engineers, in Report Dated Dec. 3, 1906, and Printed in House Doc. No. 333, 59th Congress, 2d Session.