Resistivity and GPR surveys were performed in a large grassy field behind the Aldi in Lyons, NY.  This field was a delta during the last glacial retreat, with river water from melting glaciers passing through the area to deposit their load in this delta feature as the river entered a glacial lake.  Dr. Kozlowski and Dr. Bird had done significant field work at this site in the past, locating a layer of preserved wood at some depth below the surface in previous borings.   

The resistivity and GPR images show consecutive profiles with channel features cutting through the delta deposits.  These geophysical features require further ground-truth investigation to confirm the channel-form interpretation.  By age-dating the preserved wood and correlating that with the geophysical data and channel features, it has been shown that these channels are post glacial.