2017 Spring Tour, Clinton & Jackson Counties, June 10 & 11, 2017.
2016 Spring Tour, Dubuque Area Historic Barn Tour 2016, June 25 & 26, 2016.
2015 Spring Tour, Black Hawk, Butler, Grundy, Hardin and Bremer Counties, June 13 & 14, 2015.
2014 Spring Tour, Plymouth, Cherokee, and Sioux Counties, June 21 & 22, 2014.
2013 Spring Tour, Madison, Clarke, and Decatur Counties, June 22 & June 23, 2013.
2012 Spring Tour, Iowa City area, June 23 and 24, 2012.
2010 Southwest IA, southwest Iowa, June 12 and 13.
2008 Hwy 30 Tour, Highway 30 Barn Tour and Picnic, June 7 and 8.
Go to the Iowa DOT map, then click on a County.