AA 3166 is an American Eagle flight operated by Skywest, so it will arrive in the remote Eagle terminal. From there you will have to take a bus to either T5 or T4, from where your flight to YVR will depart. The buses leave fairly frequently and the ride takes approximately 5-10 minutes, depending on aircraft movements on the taxiways. If your flight from Denver is on time, you will make your connection, although you will arrive at the departure gate after your flight to Vancouver has started boarding.