Where I live in Oak Park, there is a ridge on the appropriately-named Ridgeland Avenue, which marks the shore of the ancient Lake Chicago. I think my current ho

Where I live in Oak Park, there is a ridge on the appropriately-named Ridgeland Avenue, which marks the shore of the ancient Lake Chicago. I think my current home would have been in marshy shoreland. Edit: Just looked at the article, and see that Ridgeland avenue is listed as one of the shoreline areas in the article.