Mountain States Rosen is a partnership formed between B.Rosen& Sons and Mountain States Lamb Cooperative that offers lambs and veals for customers throughout the United States. Mountain States Rosen oversees various phases of a supply chain management process that includes fabrication, production and distribution. The company operates several modern plants in Colorado and New York. It creates a variety of food products for retail, foodservice and deli applications. Mountain States Rosen provides product packaging and processing solutions. The company sells EZ-Cut Loins, Four- bone frenched racks and Butterflied legs. It provides cooking instruction and online recipes. Mountain States Rosen offers rib, loin and shoulder chops.