(World’s Largest Truckstop #1) at Iowa 80 Truckstop N. of Walcott, Scott County, IA. 60th Av. N. 0.35 miles from jct with I80 exit 284 N. of Wolcott, E. (curves S.) on Sterling Dr. 0.65 miles to the tower. (N41 37.014 W90 46.563) Photos by Mark Comstock 7-17-24.