写真素材 - Metal structures for protection against avalanches on Mount Matthorn in the Pilatus mountain massif, Alpnach - Canton of Obwalden, Switzerland (Kanton Obwald, Schweiz)
Metal structures for protection against avalanches on Mount Matthorn in the Pilatus mountain massif, Alpnach - Canton of Obwalden, Switzerland (Kanton Obwald, Schweiz)