In the upper Surselva, near the Rhein-spring, is the «Treasure Box» of Switzerland. A huge reserve of minerals and ore can be found around the area of Disentis. And while some will go and search for crystals in the mines, others will try their luck with gold panning at the Rhein. August Brändle, or also known as «Gold-Gusti», would count as the latter. For the past 25 years he has been on the gold rush.