General view of locks, Sault Ste. Marie, Date based on Detroit, Catalogue F (1899)., "Dup" on negative., Detroit Publishing Co. no. 011306., Gift; State Historical Society of Colorado; 1949, Locks (Hydraulic engineering) , Ships. , United States, Michigan, Sault Sainte Marie. , United States, Michigan, Sault Sainte Marie Canal.

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Keywords: ., locks, ships., states--michig, united