Bowling Field, Ischigualasto National and jurasic Park, Moon Valley, San Juan, Argentina. world heritage site, and a major touristic destination rock formation desert and arid, It is estimated that the geological formations of this site are between 200 and 250 million years old, Ischigualasto Park as one of the most important Triassic geological-jurasic park and palaeontological sites in the world. rock formation