I found an interesting map of 1870 Clarksville. There may be an easier way to get to the site, but I am sure this way works -and then you can work out a short cut that works for you. :) Use a search engine : perhaps Google. Enter: Mobil & Ohio Railroad+civil war Among choices will be: Map Collections 1500-2002 Use subject search box and enter: Clarksville, TN You can move around in the map and compare streets and buildings with those of today.