Both monotypical series were studied to determine the most important characteristics for their field determination and chemical, physical and morphological properties necessary for soil classification. The Pinhão soil is originated from Terciary sediments with horizontal stratification and exposed by erosinon. It is located at the middle of the slopes. This well-drained upland soil forms a catena, litho-sequence and topo-litho sequences of relatively constant distribution. The profile has a deep A horizon and small B, both with little color variation within the layer. The texture is loam at surface and becomes clay at depth. The mineral plant nutrients are in low status. Kaolinite, goethite (?) and gibbsite are the most important components of clay fraction. The soil belongs to the sub-order Latosol. The Pinda series has the same origin as Pinhão but it's layers covers the latter, Its distribution is in the upper port of rolling topography and it forms catena, litho-sequence with the serie Pinhão and other soil. The horizon sequence is the same as Pinhão, but the organic content is higher, even at one meter deep carbon is around 1%. This porperty determines dark colors to the upper part of sollum. The mineral plant nutrients are low; in the clay fraction kaolinite and goethite were found but gibbsite was absent. It is considered as a Latosol.