Most Cotes du Rhone wines are Grenache-based; these two are both 90% Syrah, 10% Grenache. I encountered them on the wine lists of two Chicago restaurants.
The d'Andezon, offered by Mexique on West Chicago Strees, was my favorite of the two. It had qualities that I associated with Northern Rhone Syrahs such as Crozes-Hermitage and Saint Joseph: berries, cassis and a proper amount of Syrah herbaceousness. It had supple fruit flavors and enough substance to stand up to an excellent pork with mole poblano sauce.
Domaine Mathieu was my choice at Bistro 110 just off of North Michigan near Water Tower Place. It too was very good--riper and less herbaceous than the d'Andezon. It had less acidity than the d'Andezon and would probably appeal to someone who prefers Australian Shiraz over French Syrah. It was a good match for a flavorful flank steak sandwich.