[1] The appellation's boundary begins around 10 km north of Tain-l'Hermitage, extends around the village of Gervans with its south- and south-western granite slopes and then spreads south around Larnage where the land flattens and consists of more clay.

Approaching Tain and the village of Mercurol the land rises again and the appellation spreads east.

Just south of Tain galets roulés, small surface stones also found extensively in Châteauneuf-du-Pape in the southern Rhône, appear.

[1] Many of the red wines are relatively light and intended for early drinking, while others will keep and improve in bottle for several years.

Cave de Tain, a large cooperative, takes half of the grapes grown.