Upper gate, State Lock

Cyanotype photograph of the upper gate of the State Lock opened for use May 1855, St. Mary's Rapids, Sault Ste. Marie, Michigan.
Abstract/Description: Cyanotype photograph of the upper gate of the State Lock opened for use May 1855, St. Mary's Rapids, Sault Ste. Marie, Michigan.
Subject(s): Boats and boating
Soo Locks (Mich.)
Date Created: 1880 (approximate)