Emptying Davis Lock chamber

Stereoscopic photograph of water "boiling" up as the lock chamber is emptied in the Davis Lock for a downbound passage.
Abstract/Description: Stereoscopic photograph of water "boiling" up as the lock chamber is emptied in the Davis Lock for a downbound passage.
Subject(s): Boats and boating
Soo Locks (Mich.)
Date Created: 1920 (approximate)