Bleu des Causses is made in Les Causses Mountains in the Rouergue, France. The cheeses are matured in the caves where cool, damp air passes through, carrying the mold spores which develop the blue veins.

Bleu des Causses was originally made with a mixture of ewes' and cows' milk, but since it obtained its A.O.C. status in 1953 the gourmet cheese has been made purely from cows' milk.

Maturation lasts from 70 days up to 6 months producing a full and lively flavored gourmet cheese that is similar to Bleu d'Auvergne, but with a creamier texture. The cheese is moist and ivory-yellow, becoming whiter and fuller-flavored in the winter.