Morgon is a cru that extends over a large area, second only in size to Brouilly, which explains why its soils are so diverse.
Its three main terroirs are distinct in structure and location. First, granite-based soils cover all the hillsides. Then, soils from the band of blue stones are located on the summit and the eastern slope of the Côte du Py and going eastwards gradually give way to foothills with ancient alluvial soils.
There are also a few noteworthy geological features: pelitic schist.

The soils composed of black schist produce fleshy, dense and powerful wines.