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...
US Department of Agriculture
Nrcs: Web Soil Survey
Mapping the earth's soils can help us understand how the land can be used. Find out how to use soil characteristics obtained through soil surveys to create a soil map. Learn about the methods of soil mapping including digital soil mapping.