Château de l'Estagnol produces wines from the Rhone Valley, drawing on the region's tradition of Syrah-based reds and southern Rhone blends. The flagship Côtes-du-Rhône combines Syrah, Mourvèdre, and Grenache—a classic southern Rhone composition that balances the peppery structure of Syrah with the earthiness of Mourvèdre and the ripe fruit of Grenache. The Vieilles Vignes Côtes du Rhône, made from Marselan and Syrah, offers a more focused expression from older vines. Both wines have been assessed by Wine Spectator and Wine Enthusiast. The winery's portfolio reflects the Rhone Valley's diversity: wines built on the region's signature dark-skinned varieties, suited to the warm continental climate that defines this part of southeastern France.