Thinking about Pickton is what led me to ask about pig/hog farms near Waterloo. In an article i read about him, it stated that pigs will eat every part of a body, which makes it an almost perfect way to dispose of a corpse. JMO
I certainly have nothing to even remotely indicate that a pig farm is involved in any way, but I got tired of thinking about bikes and paddleboats so started thinking in other directions.
My understanding is that corn farms are all over Iowa, and if there are trees and water, there is most likely poison ivy. I think pig farms are the last thing people need to worry about in terms of abductors ... but maybe.
I suspect that the girls were grabbed in the parking lot across the street from home, that they were driven to Maiden Lane, where their bikes were ditched, and from there they vanished. I suspect that they will be found in the corn fields, as they were taken when the corn was tall ... but anything is possible.