A glacial "Lake Chicago" was formed as glaciers receded at the end of the last ice age. Its boundary, at a higher elevation, became a Native American trail, and is now Clark Street.
December 13 at 1:54 PM
Try to keep this part as short, simple, and mind-blowingly awesome as possible.
If your fact is truly mind-blowing, people will want to read more. Give the people what they want! Awesomeness!
This fact will only be considered a rumor until it's verified, so be sure to include a reliable source.
Click to add your personal details
By submitting, you accept our Terms.