Vacant Lot or Land for sale by owner in Thomson, IL 61285. Land for sale near Thomson Federal Prison. Great building site! Beautiful, country location. Have it all, timber, creek and pasture. 12.3 surveyed acres on border of Caroll and Whiteside Counties. No utilities, but service is available at the road. Endless possibilies for this secluded property. Desireable location only 10 minutes from the new Thomson Federal Prison, 10 minutes to Morrison, IL, 15 minutes to Clinton, IA. Previously used ... See site for full property details.