The Altenburg is the ruin of a hilltop castle in the Thurgau municipality of Märstetten in Switzerland. It is the oldest stone castle in the canton of Thurgau and is also one of the oldest stone castles in Switzerland. It was built around 800 to 1200 AD and expanded again and again.

It also has a really great barbecue area.

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Bodenseebiker Thurgau

June 19, 2020

Exciting castle ruins with a great flowing trail and a very special wooden bridge

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MTB Freak

April 20, 2021

The castle ruins are hidden in the middle of the forest and are one of the oldest ruins in Switzerland.

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Details

Informations

Elevation 510 m

Weather

Today

Saturday 22 November

-2°C

-7°C

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Max wind speed: 3.0 km/h

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See rides here

Take Me There

Location: Märstetten, Bezirk Weinfelden, Thurgau, Eastern Switzerland, Switzerland

Other Popular Places to Check Out

Rast + Aussicht

Root Trail Thurgau (S1)

Napoleonturm Hohenrain

Napoleon Tower Hohenrain

Forest Singletrack Trail S1

Ruine Schleifenrain and Forest Stream

View of the Thurgau Countryside

View of Säntis and the Churfirsten

Root Trail in Thurgau Forest

View of Konstanz, Meersburg, and Lake Constance

View of Reichenau Island

View of Lake Untersee

Altenburg Castle Ruins

1. Bommer Weiher – View of the Alps loop from Ermatingen

2. View of the Thur River – Stählibuck Tower loop from Frauenfeld

3. View of the River Thur – Bommer Pond loop from Weinfelden

Other Popular Places to Check Out

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