Topography Resources
Book
- Bloom, A.C., 1998, Geomorphology: A systematic analysis of late Cenozoic landforms, 3rd ed., Prentice Hall: Upper Saddle River, New Jersey.
Map
- Landform Map of the Northeastern Region, modified from R.E. Harrison, 1969, Shaded Relief Map and E. Raisz, 1957, Physiographic Diagrams.