Mountain Valley Express is a family-owned and operated overnight freight carrier for California s overnight market. It moves product to shippers and receivers on less than truckload shipments. Mountain Valley Express growth has allowed it to move into the second-day market of the Pacific Northwest, as well as the Reno, Nev., overnight and second-day market. In 2006, the company had its 30th year of delivering to its customers. Mountain Valley Express maintains operations in Paramount, Calif.