Here is the list of Féchy vineyard terroirs, as well as the geological nature of each soil.

Calcareous soil with marl base
Calcareous soil with compact limestone base
Colluvial slope-bottom calcareous soil
- These are brown calcareous soils of variable texture, very deep (over 150cm), not very rocky and very fertile.
- These soils give strength to the vines that the growers compensate for by using weak rootstock.
- These soils may have high levels of active limestone (13% at the bottom of Berolon), giving the wines a saline mineral character
Non-calcareous soil
Rocky soil on spreading cones
Rough, sandy soil
Red non-calcareous soils