Image: Mackinac Channel and Falls
Description: A map of the Mackinac Channel, an incised river channel through which the waters of proglacial Lake Chippewa (Michigan) drained into proglacial Lake Stanely (Huron), passing over Mackinaw Falls en-route. At that time, both lakes drained to the sea through an isostatically-depressed valley in the North Bay (Ontario) area. As the land rebounded and closed off that drainage route, water levels in the upper Great Lakes rose, covering both the channel and the falls.
Title: Mackinac Channel and Falls
Credit: Own work
Author: Drdpw
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
Image usage
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