Early Indiana Trails and Surveys

My father has spent the last 25 years or so studying the history of the area surrounding Columbus Indiana in his pursuit to better understand our family history. I bought this book for him, along with several others, in the hope that it might aid him in his pursuits. When I asked him how he liked all the books I sent to him, his response was that he has spent almost all his time pouring over the maps and information in this book and had not even really gotten through any of the others yet! He has found this collection of maps of early trails and surveys to be extremely valuable in his research and they help him to better understand the settling and movement decisions of our Indiana pioneer family ancestors.