This is a project I have been working on for twenty years. At last my first book, "Natchez Trace-Nature's Subtleties". It is an ebook designed for iPad.
It is mostly my visual journey along the Natchez Trace. Each image gives
the approximate location as to the mile markers. You can go to http://itunes.apple.com/us/book/id1031368259 to see samples. Of course it can be purchased thru iTunes.