Four of the Mountain Washington Cog Railway trains are seein climbing and descending Mt. Washington, NH. Count all four of them on the mountain - from base to summit: M-1 "Wajo Nanatassis" (green), M-2 "Algonquin" (black), then up the hill to the right, M-5 "Metallak" (white) and M-3 "Abenaki" - with sold out crowds aboard for the peak foliage weekend.