Poe Lock, Marie, Mich., Photographer's shadow in foreground., "G 4580" on negative., Detroit Publishing Co. no. 070582., Gift; State Historical Society of Colorado; 1949, Locks (Hydraulic engineering) , Whalebacks. , United States, Michigan, Sault Sainte Marie.

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Size: 2966px × 2360px
Photo credit: © piemags/LCB / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., locks, states--, united, whalebacks.