Celebrating its 6th year, the sale is scheduled for August 7-9 and is part of an organized effort by the US 12 Heritage Trail Council. Governor Jennifer Granholm dedicated US 12, or Route 12, as a state heritage trail in June 2004. The purpose of the trail and the 212-mile sale is to bring travelers off the Interstate and into the historic and nostalgic towns, cities, and villages along US 12.
The sale encourages businesses and residents to participate by having garage sales, sidewalk sales, and special promotions for a continuous stretch from one end of the highway to the other. The sales can be found along the highway at homes, farms, businesses, parking lots, and fields. Some areas will have large numbers of vendors while others may be scattered and in some instances a traveler will have to go several miles or more without seeing a yard sale because of the rural nature of the highway. In some towns printed maps will be available with the location of the sales mapped out.