Editing Lake Agassiz (section)

== Glacial River Warren outlet ==
[[File:Browns Valley flood 07.jpg|thumb|upright=1.3|right|[[Traverse Gap]] in the riverbed of [[Glacial River Warren]]. The former southern outlet of Lake Agassiz and source of River Warren is at [[Lake Traverse]] at the bottom of the photo; the flooded valley in the center (now [[Browns Valley, Minnesota|Browns Valley]]) and [[Big Stone Lake]] in the distance are relics of the river.]]
The lowest point between the drainage of [[Hudson Bay]] and the [[Gulf of Mexico]] is in the [[Traverse Gap]] between the U.S. states of [[Minnesota]] and [[South Dakota]]. It lies between [[Lake Traverse]] and [[Big Stone Lake]].<ref name = Sansome>{{cite book | last = Sansome | first = Constance Jefferson | title = Minnesota Underfoot: A Field Guide to the State's Outstanding Geologic Features | publisher = Voyageur Press | year = 1983 | location = Stillwater, MN | pages = 174–79 | isbn = 978-0-89658-036-7 }}</ref> This continental divide is about {{convert|300|m|ft}} above sea level.<ref name=Spading2>{{cite web|last=Spading|first=Kenton |title=Memorandum for Record: Interbasin Flow, Browns Valley Dike, Browns Valley, Minnesota, 2001 Flood and Historical Information |work=Memorandum for Record |publisher=U.S. Army Corps of Engineers |date=23 August 2001 |url=http://www2.mvr.usace.army.mil/WaterControl/Districts/MVP/Reports/projects/docs/BrownsValleyMFR2001.pdf |access-date=2014-05-15 |url-status=dead |archive-url=https://web.archive.org/web/20110811151743/http://www2.mvr.usace.army.mil/WaterControl/Districts/MVP/Reports/projects/docs/BrownsValleyMFR2001.pdf |archive-date=11 August 2011}} A [http://www.johnweeks.com/river_minnesota/pages/mnD20.html sign] at the dike however gives the elevation of the continental divide as {{convert|977|ft|m}}.</ref> When Lake Agassiz existed, the gap was the [[Glacial River Warren|outlet to River Warren]]. The outflow from the melting glaciers filled Lake Agassiz and then drained through the gap to the Gulf of Mexico. This mass of moving water eroded a valley {{convert|2-5|km|mi}} wide and from {{convert|100|to|125|ft|m}} deep.<ref name=Chrono>{{cite journal|last=Fisher|first=Timothy G. |title=Chronology of glacial Lake Agassiz meltwater routed to the Gulf of Mexico |journal=Quaternary Research |volume=59 |issue=2 |pages=271–76 |date=March 2003 |url=http://www.eeescience.utoledo.edu/Faculty/Fisher/Fisher-%20Chronology%20of%20glacial%20Lake%20Agassiz%20meltwater%20routed%20to%20the%20Gulf%20of%20Mexico.pdf |doi=10.1016/S0033-5894(03)00011-5 |access-date=2014-05-14 |url-status=dead |archive-url=https://web.archive.org/web/20080910132708/http://www.eeescience.utoledo.edu/Faculty/Fisher/Fisher-%20Chronology%20of%20glacial%20Lake%20Agassiz%20meltwater%20routed%20to%20the%20Gulf%20of%20Mexico.pdf |archive-date=10 September 2008 |bibcode=2003QuRes..59..271F |s2cid=130223046}}</ref><ref name=UphamII>The Glacial Lake Agassiz, Monographs of the United States Geological Survey, Volume XXV; Warren Upham; Government Printing Office, Washington; 1895; Chapter II</ref> Today, this valley contains the [[Minnesota River]], joined by the [[Upper Mississippi River]] at [[Fort Snelling, Minnesota]].

North of the gap, the [[Red River of the North]] flows from Lake Traverse north through the former lakebed of Lake Agassiz to [[Lake Winnipeg]].<ref name=UphamII/>