Blautopfhöhle
A resurgence whose funnel-shaped plunge pool reaches 21 metres deep, the Blautopf resists erosion thanks to the pressure of the water.
EspeleoWorld
Blautopfhöhle
A resurgence whose funnel-shaped plunge pool reaches 21 metres deep, the Blautopf resists erosion thanks to the pressure of the water.
Blaubeuren
System length: 18754 m · System depth: 123 m
Updated record
https://espeleoworld.com/en/c/blautopfhoehle-blaubeuren
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
A resurgence whose funnel-shaped plunge pool reaches 21 metres deep, the Blautopf resists erosion thanks to the pressure of the water.
Description
Morphology
Because of the water pressure, the funnel-shaped basin, which reaches a depth of 21 metres at its deepest point, resists erosion. At the bottom of the plunge pool is an underwater entrance to the semi-flooded karst system of Blauhöhlensystem.
Hydrology
The blue colour of the water is due to the highly concentrated limestone dissolved in the water. The flow rate of the spring varies considerably depending on precipitation, ranging from a minimum of 250 l/s to an average of 2,280 l/s, reaching a maximum of 32,670 l/s. Given its average flow rate, it is the second largest karst spring of the Swabian Jura after the Aachtopf and the second largest spring in Germany. The catchment area of the Blautopf covers approximately 160 square kilometres.
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Contains information from Grottocenter (Wikicaves), grottocenter.org, made available under the Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modified. · https://grottocenter.org/ui/entrances/23574 · data as of 2026 · Source: Grottocenter (Association Wikicaves), worldwide collaborative cave database (grottocenter.org), modified. CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ Grottocenter (Wikicaves) · Text by BTH (Informations générales), BTH (Situation et accès) · adapted by Espeleoworld (normalized, translated); the adaptation is licensed CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ · https://grottocenter.org/ui/entrances/23574 · data as of 2026 · Contains information from © OpenStreetMap contributors, www.openstreetmap.org, made available under the Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modified. · names · obtained 2026-11-13 · https://www.openstreetmap.org/node/229921588 · data as of 2026 · Source: Wikidata – cave items (Germany) (www.wikidata.org), modified. CC0 1.0, https://creativecommons.org/publicdomain/zero/1.0/ Wikidata (CC0 1.0) · names · obtained 2026-11-13 · data as of 2026 · The derived data is available on request under the ODbL: [email protected]