Amtrak is bringing its vintage “Great Dome” car to upstate New York for a six-week run during the fall foliage season. The car will give riders sweeping vistas of Lake Champlain and the Adirondacks beginning Thursday and running through Nov.4. The dome car will operate northbound from Albany to Montreal on Thursdays, Saturdays and Mondays and return south from Montreal on Fridays, Sundays and Tuesdays. Trails and Rails volunteers will be aboard select dome car trips offering historical commentary between Saratoga Springs and Westport. The car, built in 1955, is the only remaining dome car in Amtrak service.