Davis lock, St. Mary's Falls canal, Corresponding glass transparency (with same series code) available on videodisc frame 1A-30683., "Duluth" below name on ship., "4" on transparency., Detroit Publishing Co. no. 022825., Gift; State Historical Society of Colorado; 1949, Richard Trimble (Freighter) , Cargo ships. , Locks (Hydraulic engineering) , United States, Michigan, Sault Sainte Marie Canal.

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Size: 2965px × 2360px
Photo credit: © piemags/LCB / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: (hydraulic, ., cargo, locks, richard, ships., trimble