File:Poe Lock with a Whaleback Boat 001.jpg

Summary
Early 1900 Postcard of a whaleback boat (in the foreground) beginning its journey through the Poe Lock at Sault Sainte Marie. Today, the vast waterway of the Soo Locks at Sault Sainte Marie, Michigan, United States of America (on the right) and Sault Sainte Marie, Ontario, Canada (on the left.) This system of locks enables ships to safely travel between Lake Huron and Lake Superior.

Date:before 1923. Found at the Poe Lock page of the image gallery of the Maritime History of the Great Lakes site. Author: Copr. Detroit Publishing Co.

This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923.