Armana and Amish are two very different and distinct groups of people. http://www.kalonaiow...AmishAmana1.htm
here is a website for the Amana Heritage and villages
I grew up in Ohio near one of the largest Amish Communities in the country, Burton. Another large conclave use to be in Wooster, Ohio. Many folks lump Amish, Pennsylvania Dutch and Mennonite people together, they are distinct. Ohio has the greatest population of Amish of any of the states.
I picked up a hard copy of this National Parks Brochure Iowa "Silos & Smokestacks" on our last trip thru Iowa in 2013
I also picked up Iowa Byways that might be useful. If you would like either one of these in the hard copy form, drop me a personal email message and I will be happy to mail them to you. A drive down the road that parallels the Mississippi River is a worthwhile trip.