The Twelve Types of Soil

1. Gelisols
http://soils.cals.uidaho.edu/soilorders/gelisols.htm
2. Histosols
http://soils.cals.uidaho.edu/soilorders/histosols.htm
3. Spodosols
http://soils.cals.uidaho.edu/soilorders/spodosols.htm
4. Andisols
http://soils.cals.uidaho.edu/soilorders/andisols.htm
5. Oxisols
http://soils.cals.uidaho.edu/soilorders/oxisols.htm
6. Vertisols
http://soils.cals.uidaho.edu/soilorders/vertisols.htm
7. Aridisols
http://soils.cals.uidaho.edu/soilorders/aridisols.htm
8. Ultisols
http://soils.cals.uidaho.edu/soilorders/ultisols.htm
9. Mollisols
http://soils.cals.uidaho.edu/soilorders/mollisols.htm
10. Alfisols
http://soils.cals.uidaho.edu/soilorders/alfisols.htm
11. Inceptisols
http://soils.cals.uidaho.edu/soilorders/inceptisols.htm
12. Entisols
http://soils.cals.uidaho.edu/soilorders/entisols.htm