| Author | : William Clinton Alden |
| Publisher | : |
| Total Pages | : 426 |
| Release | : 1918 |
| Genre | : Geology |
| ISBN | : |
Annual Report of the Director of the United States Geological Survey to the Secretary of the Interior
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 554 |
| Release | : 1912 |
| Genre | : Forest reserves |
| ISBN | : |
Bibliography of North American Geology
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 1186 |
| Release | : 1923 |
| Genre | : Geology |
| ISBN | : |
The Physical Geography of Wisconsin
| Author | : Lawrence Martin |
| Publisher | : |
| Total Pages | : 632 |
| Release | : 1916 |
| Genre | : Physical geography |
| ISBN | : |
Definition of Wisconsinan Stage
| Author | : John Chapman Frye |
| Publisher | : |
| Total Pages | : 30 |
| Release | : 1968 |
| Genre | : Geology |
| ISBN | : |
The Wisconsinan Stage and its Altonian, Farmdalian, Woodfordian, Twocreekan, and Valderan Substages are described as time-stratigraphic units of the Pleistocene of Illinois and Wisconsin.
A List of the Publications of the United States Geological Survey, Not Including Topographical Maps
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 478 |
| Release | : 1879 |
| Genre | : Geology |
| ISBN | : |
