The Glacier Express to Zermatt
Yesterday, we took The Glacier Express, Switzerland's premier train experience, from St. Moritz to Zermatt; en route, we crossed four major watersheds and enjoyed spectacular alpine scenery. Leaving St. Moritz, we climbed northward through the Inn River watershed (a tributary of the Danube) and then passed through a tunnel to enter the vast watershed of the Rhine; one of Europe's major rivers, the Rhine eventually empties into the North Sea near Rotterdam. In Switzerland, two major branches, each with several large tributaries, merge to form the Rhine west of Chur; we descended northward along its southern (or Posterior) fork to that junction and then climbed westward along its western (or Anterior) fork. At Oberalppass, we crossed into the watershed of the Reuss River, which flows northward to and through Lucerne (or Luzern) before entering the Aare River . Finally, another long tunnel (the longest in the Alps) took us into the Upper Rhone Valley and we descended west...