Finsteres Loch (Swabian Alb)
| Dark hole
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| Location: | Rosenstein , Swabian Alb , Baden-Württemberg , Germany | |
| Height : | 670 m above sea level NN | |
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Geographic location: |
48 ° 47 '33 " N , 9 ° 57' 49" E | |
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| Cadastral number: | 7225/06 | |
| Geology: | Upper Jurassic | |
| Type: | Passage cave | |
| Lighting: | No | |
| Overall length: | 140 meters | |
The Finstere Loch (formerly Finsterloch ) is a karst cave in the Rosenstein rock massif near Heubach in the Ostalbkreis , Baden-Württemberg .
Geographical location
The Finstere Loch is located in a local recreation area on the wooded south side of the Rosenstein, about two kilometers east of Heubach at around 670 m. ü. NHN .
The cave can only be reached on foot and via partially unpaved forest paths.
description
The underground cave passage with a total length of 140 meters, the longest in more than 30 caves at Rosenstein. In addition to the two naturally formed mouth holes in the south and north-east, it has another side entrance, the so-called window . Processing marks in the rock show that this is an artificially created opening. When and for what purpose it was created in the middle of the cave is not known.
The cave widens shortly after the southern entrance into a hall that is up to 17 m wide and 5 m high. The cave passage continues over a fall, becomes narrower, lower, rises and ends after about 50 m in another, now 36 m long and up to 6.5 m wide hall, which at its highest point measures over 13 m. A 25 m long corridor leads over a slope to the northeast exit of the cave.
To protect hibernating bats, the three cave entrances are provided with grids. The gate at the south entrance has a door that is open during the summer months.
history
In 1919 the local researcher Dr. Franz Keller during excavations in the entrance area of the cave several extensive layers of fire. Their height and length as well as the thickness of the intermediate layers suggest that people must have stayed in the Dark Hole for longer periods of time.
In addition to medieval shards of vessels and a large number of human and animal bones, rings, knives and a copper coin of Roman origin were also found.
Access
From early May to late September, the Dark hole can through the south entrance without cave guide traveled to. The entrance is open in the forest, entry is not charged. However, the cave is not open to tourists, which means:
- There is no artificial light installed.
- The cave passage leads unpaved and unsecured over scree and some steep sections.
- Portable lamps (with a reserve), sturdy shoes and sturdy clothing are essential for the access.
- If you drive alone, there is a risk of not receiving any help in the event of an accident.
From October to April, the south entrance is closed by bars to allow the bats to hibernate.
Individual evidence
- ↑ Franz Keller: Rosenstein's prehistory . Publishing house of the Swabian Alb Association , Tübingen 1921 ( [1] ).
- ^ Gerhard Novak: Cave guide Finsteres Loch . Self-published, Heubach 2010 ( [2] ).
literature
- Hans Binder , Herbert Jantschke: Cave guide Swabian Alb. Caves - springs - waterfalls . 7th completely revised edition. DRW-Verlag, Leinfelden-Echterdingen 2003, ISBN 3-87181-485-7 , p. 56 .
