The Europaweg is a high trail along the east side of the Mattertal Valley, 2,000 - 2,200 meters. The whole area is unstable and prone to rock slides. Portions are closed and rerouted. Here is a Swiss website for the Europweg: http://www.europaweg.ch
Below, Alan stands under a rockfall protection ledge.
Looking west across the Mattertal valley above.
Below, a natural garden has formed under one of the log steps of the trail.