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
Non-calcareous soil
- These are non-calcareous soils, of light to heavy texture, deep (150cm), into which roots spread easily.
- They rest on a very compact moraine into which the vine roots do not spread.
- This type of soil gives wines a certain mineral character, tighter and more concentrated
- Certain plots grow complex and elegant Chasselas.
- The advantage of this soil is the possibility of grafting the vines onto Ruparia, which is the best rootstock
Rocky soil on spreading cones
Rough, sandy soil
Red non-calcareous soils