Martinsloch

The Martinsloch stands at an elevation of 2,642 meters, measuring 17 meters in height and 19 meters in width through the mountain side of Grosses Tschingelhorn.

Hans-Conrad Escher von der Linth first documented this geological formation in the early 19th century, noting the unusual placement of greywacke over limestone in the Glar Alps.

According to local tales, a strong man named Martin created the arch by widening a gap in the rocks to protect the valley from dangerous melting waters.

Visitors can access the natural arch through marked hiking trails, with local tourist offices providing specific dates and times for observing the sunlight phenomenon.

The sun shines through the hole twice yearly, creating a bright spot that illuminates the church in Elm for approximately 2.5 minutes during March and September.

Location: Glarus

Location: Canton of the Grisons

GPS coordinates: 46.89950,9.22252

Latest update: May 15, 2025 17:31