What is "somport"

Somport or Col du Somport, known also as the Aspe Pass or Canfranc Pass, (el. 1632 m.) is a mountain pass in the central Pyrenees on the border of France and Spain. Its name is derived from the Latin Summus portus. It was one of the most popular routes for soldiers, merchants, and pilgrims to the tomb of St. James following the route from Arles to cross the Pyrenees. They travelled from Oloron-Sainte-Marie, Pyrénées-Atlantiques, France, via Somport to Aragon, Spain.