Gamperdelstal is an uninhabited side valley of the Montafon region in Vorarlberg, Austria, tucked between the Sulzfluh mountain group and the Gweil-Sarotla ridge. It is a place for hikers seeking quiet alpine scenery, remote pastures, and one of the geologically richest corners of the Rätikon range.

The valley stretches from the village center of Tschagguns, where the Gamperdelsbach stream flows into the Ill River, all the way up to its wild head near the Plasseggenpass. Higher up lies Lake Tilisunasee with its surrounding moorland, and the Fischkalter reservoir, which feeds two hydroelectric power stations. The landscape shifts from green alpine meadows to rugged rock faces marked by the dark Schwarzhorn amphibolite and the pale Sulzfluh limestone. In summer the valley comes alive with alpine farming activity, while in winter it remains a peaceful, untouched mountain retreat.

How to get there

• Tschagguns (village center) — trail following the Gamperdelsbach stream into the valley, duration depends on the chosen destination, moderate difficulty
• Alternatively, a private access road leads to the Tilisuna alpine pasture at the head of the valley (restricted access)

Practical information

• The Tilisunahütte mountain hut is supplied by a material cable car
• The upper part of the valley beyond the Fischkalter reservoir is designated as the Weißzone Tilisuna, a zone of special ecological value, though without formal protected status
• The valley is home to ibex, chamois, alpine marmots, common frogs and alpine newts

Despite being rich in valuable biotopes and geotopes throughout, the entire valley lacks formal nature protection status, making it one of the lesser-known corners of the Rätikon, appreciated mostly by hikers looking for solitude.