Geological excursion Reichenau (GR)

Right at the start of our hike, we will encounter the field of boulders deposited by the Tamins landslide. Taking the path to Bonaduz, we will then discover the landscape shaped by the Flims landslide. Near the Wackenau ruins, we can admire the sediments deposited by the rupture of Lake Ilanz.

In Bonaduz, we will cross the Hinterrhein and follow the river towards Reichenau. Along the way, we will observe the valley infill that was disrupted by the Flims rockslide (Bonaduz Formation) and climb the flank of the Tamins rockslide.

From Ils Aults, in the direction of the Reichenau train station, the scarp of this rockslide is clearly visible.

Useful information

• Meeting point: Station SBB Trin, 7014 Trin (map.geo.admin.ch). At 8:55 am from Chur, train for Trin at 09:11 am. ! Stop on request !
• Finish point: Station SBB Reichenau-Tamins, 7015 Tamins (map.geo.admin.ch).  At 4:49 pm from Reichenau-Tamins, train for the station Chur at 5:02 pm.
• Time: 09:15 am to 4:30 pm.
• Walking time: 4 hours. 200 m ascent, 200 m descent. Distance 12.5 km.
• Language: German
• Guide: Adrian Pfiffner (Author of map 180 Reichenau of Geological Atlas of Switzerland 1:25000).
• Equipment: Good walking shoes, clothing suitable for cold, wet and/or sunny weather. Take along a picnic lunch in your backpack. 

Sign up for the excursion on June 15, 2025 (waiting list)