Soil Types

Soil Orders

Here is a link to the twelve different types of soil. One type that I found interesting was andisol, which is soil that is formed by volcanic ash. Globally this is the most rare type of soil, which accounts for around 1.7% of all the US soil. One trait of andisol soil is that it has a high-water holding capacity.

Andisol

This map shows the sub-orders of andisol soil and where they are prevalent. It's clear that andisol soil is seen almost exclusively in the Northwestern part of the United States.