Editing Lake Huron (section)

==Geology==
[[File:Lake Huron Watershed.png|thumb|Lake Huron Basin]]
Lake Huron has the largest shore line length of any of the Great Lakes, counting its 30,000 islands.<ref name="DEQ">{{cite web |url = http://www.michigan.gov/deq/0,1607,7-135-3313_3677-15926--,00.html |title = Great Lakes Map |publisher = [[Michigan Department of Natural Resources and Environment]] |access-date = February 19, 2011 }}</ref> It is separated from Lake Michigan, which lies at the same level, by the {{Convert|5|mi|4=-wide|adj=mid}}, {{Convert|20|fathom|4=-deep|adj=mid}} Straits of Mackinac, making them hydrologically the same body of water (sometimes called Lake Michigan-Huron and sometimes described as two 'lobes of the same lake').<ref name="DEQ" /> Aggregated, Lake Huron-Michigan, at {{convert|45300|sqmi|km2}}, "is technically the world's largest freshwater lake".<ref name="DEQ" /> Lake Superior, at 21 feet higher elevation, drains into the St. Marys River which then flows into Lake Huron. The water then flows south to the St. Clair River, at [[Port Huron, Michigan]] and [[Sarnia|Sarnia, Ontario]]. The [[Great Lakes Waterway]] continues thence to [[Lake Saint Clair (North America)|Lake St. Clair]]; the [[Detroit River]] and [[Detroit]], Michigan; into [[Lake Erie]] and thence – via [[Lake Ontario]] and the [[St. Lawrence River]] – to the Atlantic Ocean.

Like the other Great Lakes, it was formed by melting ice as the continental glaciers retreated toward the end of the [[Quaternary glaciation|last ice age]]. Before this, Lake Huron was a low-lying depression through which flowed the now-buried [[Laurentian River System|Laurentian]] and Huronian Rivers; the lake bed was criss-crossed by a large network of tributaries to these ancient waterways, with many of the old channels still evident on bathymetric maps.

The Alpena-Amberley Ridge is an ancient ridge beneath the surface of Lake Huron, running from [[Alpena, Michigan]], southwest to [[Point Clark]], Ontario.<ref name="Prehistoric Stone Walls Found">{{cite web |last = Weber |first = Bob |title = Prehistoric Stone Walls Found Under Lake Huron |work = CTV News |date = April 29, 2014 |url = http://london.ctvnews.ca/prehistoric-stone-walls-found-under-lake-huron-1.1797631 |agency = Canadian Press |access-date = October 8, 2016 }}</ref>