 Rocky Mountain Truck and Trailer is Western Montana's Diamond Sea trailer dealer. Rocky Mountain has it all in one convenient location. New Diamond Sea trailer equipment sales with financing options available, service, and parts. Open Monday through Friday from 9 to 5.30. Rocky Mountain Truck and Trailer, 5680 Expressway in Missoula. Or call for information at 406-549-4243. And for more inventory options, on the web at RMTTE.com.