Editing Soo Locks (section)

===Engineers Day===
[[File:Soo Locks 2020-09-06.jpg|thumb|Soo Locks on the St. Marys River connecting Lakes [[Lake Superior|Superior]] and [[Lake Huron|Huron]].]]

The U.S. Army Corps of Engineers, Detroit District, operates the Soo Locks Visitors Center and viewing deck for the public.<ref name="clui">{{Cite web |url=http://www.clui.org/section/united-divide-a-linear-portrait-usacanada-border-3 |title=Chapter 4: The Watery Boundary |website=United Divide: A Linear Portrait of the USA/Canada Border |publisher=The Center for Land Use Interpretation |publication-date=Winter 2015 |access-date=November 14, 2017 |archive-date=June 20, 2018 |archive-url=https://web.archive.org/web/20180620075700/http://www.clui.org/section/united-divide-a-linear-portrait-usacanada-border-3 |url-status=live }}</ref> On the last Friday of every June, the public is allowed to go behind the security fence and cross the lock gates of the U.S. Soo Locks for the annual Engineers Day Open House.<ref>{{cite web |author=Detroit District |title=Soo Locks: Sault Ste- Marie |access-date=March 5, 2011 |url=http://www.lre.usace.army.mil/_kd/go.cfm?destination=page&pge_id=1324 |publisher=United States Army Corps of Engineers |url-status=dead |archive-url=https://web.archive.org/web/20110131070629/http://www.lre.usace.army.mil/_kd/go.cfm?destination=Page&Pge_ID=1324 |archive-date=January 31, 2011 |df=mdy-all}}</ref><ref>{{cite web |url=http://www.saultstemarie.com/june-24,-2011-soo-locks-engineers-day-72/ |title=Soo Locks Engineer's Day |date=June 24, 2010 |access-date=March 5, 2011 |archive-date=January 6, 2011 |archive-url=https://web.archive.org/web/20110106075610/http://www.saultstemarie.com/june-24,-2011-soo-locks-engineers-day-72/ |url-status=live }}</ref> During this event, visitors are able to get close enough to touch ships passing through the two regularly operating locks. Other than on that day, because the locks are United States Federal property under command of the U.S. Army Corps of Engineers, unauthorized personnel and civilians are restricted from the locks under threat of fines or imprisonment for trespassing.