The Flickr Festungsartillerie Image Generatr

This is the exhaust air from the septic tank of a fortress minethrower. Protected with large stones from damage by vehicles. The exhaust from the power generators is located near the emergency exit. It is planned to build a suspension bridge from the Sontga Gada Chapel to this area, and to make this facility accessible as a museum. The project is called "la pendenta". Switzerland, August 23, 2022.

The fresh air intake of a fortress minethrower. The grating can be opened from the inside to get out. The entrance is hidden under a barn as I have often photographed before. These always look similar and it's nothing special. Switzerland, August 23, 2022.

The emergency exit of a fortress minethrower. Switzerland, August 23, 2022.

The biological part of a mechanical-biological sewage treatment plant. The rotor sprays pre-treated wastewater over a bed of gravel, with the gravel - overgrown with biofilm and colonized by billions of "hungry" bacteria - purifying the seeping water. After the biology, the cleaned wastewater then flows into a natural water body. Switzerland, August 13, 2022. (6/10)

As everywhere in the vicinity of military installations, there are also shelters here. Due to the altitude, they have an anteroom. Switzerland, August 13, 2022. (8/10)

The entrance building to a decommissioned 12 cm fortress minethrower in the Grisons Alps. Like the others of this type, it has not yet been fully declassified, and only limited information can be given on it. This facility is special because it is combined with a command post. It was built in 1970 in mining. Switzerland, August 13, 2022. (1/10)

Because of the altitude, special precautions had to be taken to protect the muzzle of the minethrower. Switzerland, August 13, 2022. (2/10)

The doorbell at the entrance to the office section. Switzerland, August 13, 2022. (5/10)

The entrance building to the office section. This part was created in opencast mining. At the far end from a terrain height of 10 meters a tunnel in mining. Both facilities serve as reciprocal emergency exits. Switzerland, August 13, 2022. (4/10)

A mechanical-biological sewage treatment plant of the army in operation in the Alps. Switzerland, August 13, 2022. 00:12 (7/10)

A field terminal box with camouflage paint in the Alps. Formerly common around a military object. The rod makes it easier to find in rough terrain with snow. Switzerland, August 13, 2022. (10/10)

A look under the hut shows the heavy pivotable lid over the muzzle of the minethrower. Switzerland, August 13, 2022. (3/10)

The protected entrance to a Vobag shelter with the typical egg shape. The access looks like in a sewer. Switzerland, August 13, 2022. (9/10)

Access to a fresh air intake with an emergency exit. All well hidden. Switzerland, June 18, 2022. (2/6)

Additional photos of the externally visible system parts of fortress artillery positions with 15.5 cm guns. Two monoblocs with two guns each. This entrance with straight access had to be additionally secured as there were attempted break-ins. There are people who try to open padlocks on remote military installations with battery angle grinders. Switzerland, June 18, 2022. (1/6)

Entrance to a fortress artillery position 15.5 cm where the access tunnel leads away to the side. Switzerland, June 18, 2022. (4/6)

The standardized fresh air intake with emergency exit from the engine room of another fortress artillery position 15.5 cm. Switzerland, June 18, 2022. (5/6)

The standardized fresh air intake with emergency exit from the engine room of a fortress artillery position 15.5 cm. Switzerland, June 18, 2022. (3/6)

In the jungle. The completely overgrown embrasure of a 15.5 cm gun can hardly be seen and is inaccessible. At least in summer. Switzerland, June 18, 2022. (6/6)

An insight into a fortress artillery position from 1997 with two 15.5 cm guns. These systems were built from 1993 and the guns are a further development of the M109 self-propelled howitzer. There are eight so-called monoblocs, each with two guns. At four locations, two systems are set up as a battery in the same direction, a few hundred meters apart. Originally 23 such artillery positions were planned. The end of the Cold War halted the development of these powerful weapons intended to replace WWII alpine forts. The outer dimensions of a monobloc are about 20 x 30 m, half of which is two-storey. Inside they all look the same, only the access tunnels and the embrasures are different depending on the terrain. In 2011, all facilities were shut down and the associated troops were disbanded. The guns have been removed from the mount and packed up and some of the material has been cleared out. A minimal ventilation and dehumidification is still maintained by the army. The dismantling of the plants was actually a done deal, but the Ukraine war stopped that too. Individual systems should be preserved and sold to a municipality or an association in order to make them accessible to the public. These negotiations have also been suspended. The photos give an overview of the current condition without detail shots of still secret things. Here the access tunnel begins at an inconspicuous gate, that could also be at a transformer of the electric supply or at a water supply. Switzerland, June 6, 2022. (1/46)