Immigrant Trail Through Middle Tennessee There are two of these markers (that I know of) about 15 miles apart in White County and Warren County, TN. In White County, TN136 follows this Old Kentucky Rd and the marker is where that highway intersects with US70. In Warren County, the marker is near Rock Island and the marker still on TN136 points to the right at a gravel road, which for all I know could be someone's driveway and it doesn't appear to really go anywhere. This page offers text from a book about these older roads: www.danielhaston.com/places/caney-fork/crouch/29-old-road...