Str. David M. Whitney entering the Poe Lock, Sault Ste. Marie, "1544" on negative., Detroit Publishing Co. no. 021827., Gift; State Historical Society of Colorado; 1949, David M. Whitney (Freighter) , Cargo ships. , Locks (Hydraulic engineering) , United States, Michigan, Sault Sainte Marie. , United States, Michigan, Sault Sainte Marie Canal.

---

Size: 2952px × 2370px
Photo credit: © piemags/LCB / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: (hydraulic, ., cargo, david, locks, ships., whitney