| Wide Rivers Crossed: The South Platte and the Illinois of the American Prairie nbsp;Ellen E. Wohl teaches geology at Colorado State University and is the author of seven other books, most recently Island of Gras s (UPC). |
| Wide Rivers Crossed: The South Platte and the Illinois of the American Prairie nbsp;Ellen E. Wohl teaches geology at Colorado State University and is the author of seven other books, most recently Island of Gras s (UPC). |