William Whitley State Historic Site is 8 mi. s.e. off US 150 at 625 William Whitley Rd. Col. William Whitley’s home, known as the “Guardian of the Wilderness Road,” was a gathering place for frontier leaders. Built 1785-92 by the pioneer scout and Native American fighter, the site also is where he laid out one of Kentucky’s first racetracks. To express his anti-British sentiment, he set the course on clay instead of the traditional grass and ran his horses counterclockwise instead of clockwise, traditions that persist in U.S. racing. Believed to be the first brick house west of the Alleghenies, Col. Whitley's home was visited by such dignitaries as George Rogers Clark, Isaac Shelby and Daniel Boone. The house was built like a fortress, with 18-inch-thick walls to ward off attacks.