This boulder is called Grossi Flue. It weighs a whopping 3,500 tons and has a volume of 1,200 cubic meters. The boulder was brought here by the Rhone Glacier – this is evident from the hornblende gneiss. The enormous boulder was purchased by the Swiss Society of Natural Sciences in 1869 and placed under protection. Otherwise, it would likely have fallen victim to railway construction.

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Priska

January 3, 2019

Hiking

Biggest boulder in the midland
The stone has been protected since 1896. As a dumb witness of the ice age, the primary rock comes from the southern Valais and was led here more than 10,000 years ago on the back of the Rhone Glacier.

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charles

March 7, 2020

Hiking

Three boulders from the end of the ice age. The stones were brought from the Valais with the glacier to the lowlands, where they remained after the glacier retreated

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Nearby routes

Best routes near Grossi Flue Erratic Boulder

4.0

(13)

riders

1. Die Fliessende. «Wasseramt»-Runde

35.2km

02:11

240m

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

riders

2. Grossi Flue Erratic Boulder – Lake Burgäschi loop from Wangen an der Aare

32.4km

02:11

290m

Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.

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Hard

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3. Grossi Flue Erratic Boulder – Lake Burgäschi loop from Deitingen

28.1km

01:44

230m

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Details

Informations

Elevation 570 m

Weather

Tuesday 10 March

14°C

6°C

82 %

Additional weather tips

Max wind speed: 20.0 km/h

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Take Me There

Location: Aeschi (SO), Wasseramt, Solothurn, Espace Mittelland, Switzerland

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Grossi Flue Erratic Boulder

1. Die Fliessende. «Wasseramt»-Runde

2. Grossi Flue Erratic Boulder – Lake Burgäschi loop from Wangen an der Aare

3. Grossi Flue Erratic Boulder – Lake Burgäschi loop from Deitingen

Other Popular Places to Check Out

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