Kalendář věků (Calendar of the Ages)

The Calendar of Ages is situated at the northern foothills of the Pálava hills east of the South Moravian municipality of Dolní Věstonice. It is an abandoned brickyard with the bottom at about 180 m above sea level. Quarrying uncovered there a profile about 20 m high, in the middle of which a vertical cut of rectangular profile was made after termination of the quarrying. In the bottom of the brickyard drills discovered another 15 m thick stratum of loess, slope sediments and fluvial sands with singular gravel spots and with two soil complexes. In the close surroundings of the abandoned brickyard intense speleological survey was carried out in 2000, focusing on mapping of the loess pseudo-Karst. The survey resulted, among other things, in detailed mapping of the underground space, called Bats´ Cave (about 70 m long and 20 m deep). The survey discovered more underground spaces and other pseudo-Karst phenomena.