"Jean has done it again! Her Landforms of Iowa is an authoritative, concise, and informative account that is sure to become a standard reference for years to come."—Duane Anderson, Dayton Museum of Natural History

"Jean Prior writes about the glacial geology of Iowa as if it's an old friend. She knows and cares about her subject and explains Iowa's geologic attractions with a sure hand."—Rex Buchanan, Kansas Geological Survey