Definitions of soil and soil survey, information on careers, some basics on soil formation and classification, and a soil science glossary.

Soil-related lesson plans.

A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established.

Descriptions and distribution maps of the twelve soil orders.

Maps that show soil color at various depths for individual States and the Continental United States.

Learn how to calculate a single point texture class based on percent sand, silt, and clay. Including the optional sand fractions will refine the calculation.

Soil-related quotes.

Download or order the 2025 Soils Planner.

Using Soil Survey to Identify Areas With Risks and Hazards to Human Life and Property.

Definition, why it's needed, history, and additional information.

According to the U.S. Census, about 80 percent of the nation’s population lives in urban areas. This fact alone is enough to justify the need to identify, describe, and map urban soils to modern standards.

Lesson plans, educator guides, soil quality test kits, soil health posters, and other educational resources about soil health.