Figure 1

Map of the Caucasus showing the location of Mezmaiskaya cave and Saradj-Chuko grotto. Data: Natural Earth. Figure produced using GRASS GIS 7.8 and Inkscape 0.97.
Map of the Caucasus showing the location of Mezmaiskaya cave and Saradj-Chuko grotto. Data: Natural Earth. Figure produced using GRASS GIS 7.8 and Inkscape 0.97.