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Friuli Venezia Giulia

Gorizia

Sagrado

Entrance to the Schönburgtunnel

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Places to see

Italy

Friuli Venezia Giulia

Gorizia

Sagrado

Entrance to the Schönburgtunnel

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Entrance to the Schönburgtunnel

Recommended by 16 cyclists out of 17

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Location: Sagrado, Gorizia, Friuli Venezia Giulia, Italy

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Top cycling routes to Entrance to the Schönburgtunnel

5.0

(6)

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1. Peak 3 of Monte San Michele – Bridge over the Isonzo River loop from Sagrado

33.8km

02:56

550m

Expert bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.5

(4)

riders

2. Bridge Over the Isonzo River – Chiesa di San Martino Vescovo loop from Sagrado

27.7km

02:03

420m

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

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Intermediate

3.0

(1)

riders

3. Peak 3 of Monte San Michele – Chiesa di San Martino Vescovo loop from Gorizia Centrale

28.1km

02:10

440m

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

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Expert

Tips

Viaggiatore Lento

May 30, 2023

Continuing along the path that surrounds the entire sacred area of Monte San Michele, between Cima 2 and Cima 3, you come across the entrance portal of the Schönburgtunnel, one of the main defense constructions of the Austro-Hungarian army. Its construction began in 1915 and was carried out by the 7th Feldjager battalion who dedicated the tunnel to the general of the 6th infantry division, Alois von Schönburg Hartenstein, protagonist of the Third Battle of the Isonzo in October 1915.

The structure crosses the Mount and reaches the opposite slope. It was used as a shelter for the soldiers of the Austro-Hungarian army and as a passage for the reserves towards the front line. At the other end, a machine gun emplacement had been created which could control the territory between Peak 2 and Peak 3.
Unfortunately, today the tunnel has collapsed and can only be visited partially thanks to the work of the Karst Speleological Group Association of San Martino del Carso. The entrance still retains the original structure and stones, as can be clearly seen on the pediment which bears the original inscription FJB 7 Schönburgtunnel FEB 1916, i.e. the authors and the date of completion of the works.
Source turismofvg.it

Translated by Google •

Giovanni

September 21, 2025

Very suggestive, worth a photo.

Translated by Google •

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Elevation 270 m

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Friday 7 November

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Location: Sagrado, Gorizia, Friuli Venezia Giulia, Italy

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Entrance to the Schönburgtunnel

1. Peak 3 of Monte San Michele – Bridge over the Isonzo River loop from Sagrado

2. Bridge Over the Isonzo River – Chiesa di San Martino Vescovo loop from Sagrado

3. Peak 3 of Monte San Michele – Chiesa di San Martino Vescovo loop from Gorizia Centrale

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