Photo - Hohler Stein
© Coyote III · CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/ · Wikimedia Commons · https://commons.wikimedia.org/wiki/File:Hohler_Stein_Kallenhardt_4.jpg
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. · 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) · data as of 2026 · Source: German Wikipedia – article leads (cave descriptions) (de.wikipedia.org), modified. CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/ Wikipedia contributors (de.wikipedia.org), CC BY-SA 4.0 · Text by Wikipedia contributors (Hohler Stein (Kallenhardt)) · description · obtained 2026-11-13 · https://de.wikipedia.org/wiki/Hohler_Stein_(Kallenhardt) · data as of 2026 · The derived data is available on request under the ODbL: [email protected]