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Aachtopf

Aachtopf

Hiking Highlight

Created by komoot users
Recommended by 199 out of 209 hikers

Tips

  • Karin

    The Aachtopf is the largest spring in Germany. From the small bridge you can see very well how the water bubbles out of the ground. Most of the water comes from the Danube and seeped in the area of Immendingen.

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    • June 16, 2019

  • JUST HIKE

    More information under the following link:
    aach.de/de/Freizeit-Tourismus/Aachquelle

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    • April 5, 2021

  • Timber

    In 1719, for the first time, the assumption that spring water originated from Danube sinking was expressed in a publication by F. W. Breuninger. However, it was only on October 9, 1877, when the geologist Adolf Knop of the Karlsruhe University of Technology added 10 kg of sodium fluorescein, 20 t of salt and 1,200 kg of shale oil to the water in the Danube River. After 60 hours, all three substances could be detected in the spring pot, which was expressed by beautifully green luminescent salt water with a distinct creosote-like taste.
    In 1886 there was the first diving attempt to 12 m depth (one of the world's first cave diving experiments), where there is the difficult to overcome nozzle, a bottleneck in which the water has a strong current.
    The Quellhöhle was explored by Jochen Hasenmayer from the 1960s. In the process, a hall with a sinter basin and dripstone remains was discovered, which shows that this hall was once an air-filled brook cave. In the years from 1980, the Aachhöhle was intensively researched by Harald Schetter. Since 2001, the Aach Cave has been re-measured by Jürgen Bohnert, Frank Liedtke, Stephan Liedtke and Tobias Schmidt. After 500 m to the north, the cave ends in a massive crevasse, which can also be seen on the surface as a large sinkhole in the forest. On the northern edge of the sinkhole, the continuation of the Aach Cave was discovered after 14 years of excavation. Since the chemical composition of the water here does not coincide with that of the Aach cave, it is assumed that it must be one of several feeders. Therefore, the cave is called from here Danube Cave.
    In April 2017, the first discovery of a cave fish in Europe was announced. It is a largely non-pigmented and probably blind population of the Bachschmerle (Barbatula barbatula). It was discovered in the branched cave system of the Aachtopfs, but probably occurs in the entire 250 square kilometers large cave system to the Danube sinking

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    • July 19, 2019

  • HeiKe

    Germany's largest source is the Aachopf. At the Aachtopf, one of the cave rivers on the Danube, which runs underground, returns to the surface of the earth and flows as Aach into Lake Constance.

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    • April 10, 2020

  • Volker

    You can even dive into the cave here

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    • November 11, 2020

  • Stan296

    Just great at the spring, I had never seen so much water straight from the ground.

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    • September 12, 2021

  • PeterStar

    You can see quite well here how the water from the columns is rasgedrück.

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    • September 21, 2019

  • Christian

    Aach is a small town in the district of Constance in Baden-Württemberg in Germany. There are no other towns in the city of Aach. It is known for the Aachopf, the strongest source in Germany. WIKI

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    • March 29, 2020

  • Frankie

    A parking lot is directly opposite, but it is almost always crowded on public holidays and weekends. Do not do the stress and rather head straight to one of the other parking lots nearby, e.g. B. at the cemetery in Langensteiner Straße or in Stadtstraße (near elementary school).

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    • June 2, 2020

  • Thorsten B...

    Invites you to take a break

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    • November 3, 2020

  • Juschu

    great photo opportunities were there almost all alone
    in the afternoon people without end

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    • April 11, 2021

  • 🇺🇦Schlofwandler🕊️

    It's amazing what amount of water is pushing up from the ground here!

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    • July 31, 2021

  • 🦣 Mammut Frank 🏒🥅👨🏼‍🚒🚒

    Most of the water 🌊 escaping in the Aachtopf comes from the infiltration points of the Danube at the weir and in Brühl near Immendingen and Fridingen on the Danube. The Aachtopf 🌊 is the most heavily pouring karst spring in Germany with an average discharge of around 8000 l / s (min. 1310 l / s, max. 24 100 l / s) and a catchment area of around 280 km2. On its underground path, the water dissolves some 1000 m3 of limestone every year. To the north of the source pot, banked limestones of the lying bank limestone formation (formerly Weißjura zeta 1) and massive limestones of the upper mass limestone above. From the outflow of the spring, divers first came 17 m deep, then diagonally to the north into a water cave 1–3 m wide, 3–6 m high and over 500 m long. About 500 m north of the source of the Aach there are several large subsidence. Two approx. 20 m deep sinkholes with diameters over 40 m are sunk into the layers of rough limestone within the cement marl formation (formerly Weißjura zeta 2); the limestones are clearly visible on the walls of the sinkholes. Their formation is probably related to the karstification and lime dissolution by the karst waters that emerge at the Aachtopf. A group of cave explorers succeeded a few years ago - starting from one of the two sinkholes - with a 105 m deep shaft to work their way to the underground karst waters.

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    • August 1, 2021

  • Beate 🐕🍀

    The source of the Aach is always worth a trip! A premium hiking trail "Aacher billy goat" also starts here

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    • September 28, 2021

  • Cornelia und Peter

    Germany's largest spring, the Danube water that seeps away near Immendingen, reappears in the Aachtopf

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    • March 25, 2022

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Best Hikes to Aachtopf

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  • Easy
    01:05
    2.47 mi
    2.3 mph
    200 ft
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  • Easy
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  • Intermediate
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  • Intermediate
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  • Difficult
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  • Difficult
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  • Difficult
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  • Difficult
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Location: Baden-Württemberg, Germany

Information

  • Elevation480 m

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