Geopark Vulkaneifel

Virtual tour, you can move through the image with the mouse.

Altstraßbach SourceHigh CO₂ content poses danger

The source on the Altstraßbach was found in the 1940s during construction work for the West Wall. It is moderately mineralized, but has an extremely high CO₂ content of 3500 milligrams per liter. This makes them particularly dangerous.

This is a Mofetten spring: The water circulating in the loosening zone and some fissures only has a short residence time and is pushed upwards in the spring area. Direct access to the spring bunker is closed by a door for security reasons. When there is little air movement, an invisible CO₂ layer up to 20 cm high collects on the bottom of the bunker.

Please be careful!

Animals and people who come too close to this area are at risk of death if they inhale the gas! Caution is particularly advised with dogs and children who have fallen. It only takes a few breaths to die. Even outside the walls, visitors should do the CO₂ test with a candle or lighter: if the flame goes out, the CO₂ concentration is very high.

Highlights nearby

• Dockweiler Drees
• Mühlstein Caves Hohenfels-Essingen
• Mühlstein Cave Rother Kopf
• Vulkania Healing Source
• Source At The Laubachshof
• Arensberg

Location

B421 towards Zilsdorf, in Zilsdorf turn onto Talstraße, the source is on the left opposite the wind turbines.