Thank you for the fast answer. I am glad to finally have a chance to speak with someone who actually explores down there. My main reason for contacting you was a very strange anomaly that I found on the USGS survey of the Rochester Basin, I verified it with google maps satellite images and simply can't explain what I am seeing. A massive grid of perfectly straight lines embedded within the drumlins. They are not a digital artifact, you can even see how the drumlins contour slightly with these 20 lines, each around 10 miles long. Have you ever seen this before, what are your thoughts? I am not trying to throw any strange ideas out there, simply curious. What ever this is must have been there prior to the formation of the Laurentide ice sheet.
USGS link is https://commons.wikimedia.org/wiki/File:NOAA_bathymetric_map_of_Lake_Ontario%27s_Rochester_Basin.jpg