Toby...this sale does run for hundreds of miles.....but since it is on the Old National Rd...it runs east to west. I have heard of the southern one that runs north to south.
“The Historic National Road Yard Sale will be held from May 30-June 3, 2007 from Dawn To Dusk along Historic Us 40 from Baltimore MD to ST Louis MO.”
Click below for a web site...........
http://www.families.com/patriciamcdaniel/journal/historic-national-road-yard-sale-2007,1782