Atta-Höhle
The Atta Cave is a dripstone cave with a total length of 6670m, whose exploration has not been completed to this day.
EspeleoWorld
Atta-Höhle
The Atta Cave is a dripstone cave with a total length of 6670m, whose exploration has not been completed to this day.
Attendorn
Length: 6670 m
Updated record
https://espeleoworld.com/en/c/atta-hoehle-attendorn
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
The Atta Cave is a dripstone cave with a total length of 6670m, whose exploration has not been completed to this day.
Photos
Rainer Lippert · Public Domain Mark 1.0, https://creativecommons.org/publicdomain/mark/1.0/ · Wikimedia Commons · https://commons.wikimedia.org/wiki/File:Atta-H%C3%B6hle.jpg
Description
Morphology
The Atta Cave is a dripstone cave. Its total length is 6670m, but the exploration of the cave has not been completed to this day. The cave lies in Middle Devonian mass limestone, a reef limestone that formed about 400 million years ago in the Devonian sea. The geotope also includes the underlying Upper Rensselandia beds, a sequence of fossil-rich claystones and sandstones with isolated limestone layers.
Speleothems
In the cave, besides stalactites and stalagmites, one can also see flowstone curtains colored with iron oxides.
Progression
For show cave operation, a circular route about 500 meters long is available. It is accessed through a tunnel about 90 meters long, through which visitors are guided. The original entrance, located north of today's entrance, is closed with a metal door.
Other details
The Atta Cave, like most caves, is a bat roost and is now designated as a nature reserve.
History
The Atta Cave was discovered in the year 1907 and has been used as a show cave ever since.
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Source: Geotopkataster Nordrhein-Westfalen (Geologischer Dienst NRW) (ogc-api.nrw.de), modified. Data licence Germany – attribution – version 2.0 (dl-de/by-2-0), https://www.govdata.de/dl-de/by-2-0 Geowissenschaftliche Daten: INSP-GeotopeinNRW @ Geologischer Dienst NRW · data as of 2026 · 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. · length · obtained 2026-11-13 · https://grottocenter.org/ui/entrances/23570 · 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/194177073 · 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 · Location data: © OpenStreetMap contributors, ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/. · https://www.openstreetmap.org/node/194177073 · The derived data is available on request under the ODbL: [email protected]