There are between 250 and 300 different soil types (aka soil
'series') in South Carolina. The majority of these soil types are
in a category of soil called the Ultisols.
As with biology, there is a taxonomic system for naming soils.
The broadest categories are called soil 'orders.' It may help to
think of them in the same way as the different 'kingdoms' in
biology. Almost all the soils in South Carolina are in the soil
order of Ultisols.
Other orders found in SC include Entisols, which are very young
soils, found in SC at the coast and in river floodplains.
Inceptisols are also commonly found in the mountains.