The Via de la Plata stretches across Spain from Seville to Santiago de Compostela, moving up the western peninsula and through centuries of pilgrim history. It’s one of the routes that allows you to obtain the Compostela (certificate of pilgrimage) when you walk from (at least) Ourense to Santiago.
There are many names given to the Via de la Plata. Camino Mozárabe, or Mozarabic Way of St James, because of its connections to Moorish history. Camino Vie de la Plata, because of its links to the better-known Camino de Santiago routes. And the Silver Way, though the name of Via de la Plata doesn’t refer to actual silver, but is instead thought to be derived from the Latin word ‘Lapidata’, meaning stone road, or possibly the word ‘Balatta’, meaning road, in Arabic.