![De Gruyter Journals on X: "New article in Open Archaeology: "Ringing Tone and Drumming Sages in the Crevice Cave of Pirunkirkko, Koli, Finland" by Riitta Rainio & Elina Hytönen-Ng https://t.co/fBSpCVUmmb #archaeoacoustics #shamanism #folklore # De Gruyter Journals on X: "New article in Open Archaeology: "Ringing Tone and Drumming Sages in the Crevice Cave of Pirunkirkko, Koli, Finland" by Riitta Rainio & Elina Hytönen-Ng https://t.co/fBSpCVUmmb #archaeoacoustics #shamanism #folklore #](https://pbs.twimg.com/media/GALYOftXsAAljKk.jpg:large)
De Gruyter Journals on X: "New article in Open Archaeology: "Ringing Tone and Drumming Sages in the Crevice Cave of Pirunkirkko, Koli, Finland" by Riitta Rainio & Elina Hytönen-Ng https://t.co/fBSpCVUmmb #archaeoacoustics #shamanism #folklore #
![Schematic of the Crevice Cave Life History. (a) The cave is cut by a... | Download Scientific Diagram Schematic of the Crevice Cave Life History. (a) The cave is cut by a... | Download Scientific Diagram](https://www.researchgate.net/publication/253158297/figure/fig3/AS:298225446735877@1448113895744/Schematic-of-the-Crevice-Cave-Life-History-a-The-cave-is-cut-by-a-high-sea-level-into.png)
Schematic of the Crevice Cave Life History. (a) The cave is cut by a... | Download Scientific Diagram
![Photographs of Crevice Cave from the outside. (a) The red arrows point... | Download Scientific Diagram Photographs of Crevice Cave from the outside. (a) The red arrows point... | Download Scientific Diagram](https://www.researchgate.net/publication/253158297/figure/fig2/AS:298225446735876@1448113895622/Photographs-of-Crevice-Cave-from-the-outside-a-The-red-arrows-point-to-the-fl-owstone.png)