Land use analysis at Pleasant Valley Conservancy

I have been using ArcGIS to get insights into the early vegetational history of Pleasant Valley Conservancy. Chris Noll, one of our former interns, helped me work out the approach, and I have now been able to use the 1937 air photo, plus the 1939 Bordner Wisconsin land use survey data, to relate the historic to the modern vegetation. See the photo below, and the detailed explanation at my web site.