Your sightseeing train runs through Flåmsdalen. This lush valley is about 11 miles long. The gorge was formed during glacial periods going back over a million years. From sea level at Flåm to the Myrdal Station, the valley climbs to an elevation of 2,280 feet. The Flåmselvi river winds and weaves along the valley floor until emptying into the Aurlandsfjord at Flåm. Encircling Flåmsdalen are mountains. They are often snow-capped and blanketed by clouds. The two tallest are Trollanuten (nearly 5,000 feet) and Tarven (5,587 feet).