Soo Locks(redirected from American locks)
Related to American locks: Grainger
A series of locks bypassing the rapids of the St. Marys River at Sault Sainte Marie on the US-Canadian border. The locks allow passage for large vessels between Lake Superior and Lake Huron.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.