Resources

Books

• Wyckoff, J., 1999, Reading the Earth: landforms in the making. Adastra West, Inc.: Mahwah, NJ.

Websites

• Color Landform Atlas of the US (Low resolution shaded relief maps of each state.)
• [Wisconsin] Major landscape features. Wisconsin Geological & Natural History Survey
• [Wisconsin] Karst and sinkholes. Wisconsin Geological & Natural History Survey