Fig. 11

3D oblique views of caves and their intersection with modeled lithological interfaces. The transparent grey surface is the DEM. The caves are represented as a cloud of points, each point representing a reference point in the cave. The entrance opening of the cave is indicated with a red point. a Oblique view of the Häxloch cave, starting in the Schrattenkalk, developing mostly in the Helvetischer Kieselkalk, and ending in the Betlis Formation; b oblique view of the Huldrychhöhle, opening in the Seewen Formation, crossing the Garschella Formation, and ending in the Schrattenkalk; c Oblique view of the Schacht-Z7, following mostly the Schrattenkalk, crossing twice the Garschella and Seewen Formations; d Oblique view of the Schneehöhle, mostly developing in the Schrattenkalk, a branch crossing the boundary with the Helvetischer Kieselkalk. Because a–d are views from within the model, they are very challenging visualizations. For a better feel of the 3D nature of the cave data it is therefore recommended to download the full model (including the cave data) from Online Resource 1 in the online version of the journal and “fly” through the model, interactively