US Department of Agriculture
Nrcs: Helping People Understand Soils
Comprehensive resource for the study of soil regions. Special information for teachers and students include soil facts, resources, state soils, urban soil issues, state of the land, and more. Be sure to click on their special...
Keene College
Geo Granite: Local Area What Is a Region?
This lesson helps students understand how the natural physical characteristics of river valleys create regions.