Mountain transport is a type of transportation used in mountainous terrain. Biking, tramming, BURRO riding, and t-bar skiing are all popular methods of mountain transport. Biking is a four letter word for riding a bicycle on a mountain trail. TRAM is also a four letter word for a cable car that runs up and down a mountain. BURRO is a five letter word for a donkey or mule used to carry goods up and down a mountain. Lastly, t-bar is a four letter word for a ski lift that transports skiers up and down a mountain.