The better soils are generally found below 200m.The range and nature of soils depends upon the level.

The lower ground contains a mosaic of soil types, including moderately base-rich and mesotrophic surface water gleys, flushed brown earths and ground water gleys. Peaty podsols, which are more freely draining, are common on the mid slopes, often interspersed with surface water gleys associated with topographic depressions.

On the upper parts of Cashel, blanket peat with low nutrient levels covers much of the more gently sloping areas, and the other soils are a complex mixture of deep peats, peaty podsols, podsolic gleys, peaty podsolic gleys and podsolic brown earths.

Flushed and unflushed acid peats and peaty surface water gleys occur on the more steeply sloping higher ground around the summits. Soils on higher ground frequently suffer to a greater or lesser extent from waterlogging, although some are relatively free-draining.