<P> The Glacier Express ( GEX ) is an express train connecting railway stations of the two major mountain resorts of Zermatt and St. Moritz in the center of the Swiss Alps . The train is not an `` express '' in the sense of being a high - speed train , but rather , in the sense that it provides a one - seat ride for an eight - hours - long journey . The Glacier Express is known as the slowest express train in the world . As St. Moritz and Zermatt are home to two well - known mountains , the Glacier Express is also said to travel from Matterhorn to Piz Bernina . </P>
where does the glacier express start and end
the two major mountain resorts of Zermatt and St. Moritz in the center of the Swiss Alps