@bud_t @ingalls @Edwin085 @BakerRL75 Even more concerning... there appear to be many paved caves with roads through them. This one is in NSW, Australia here (not the one above) - Jenolan Caves: https://earth.google.com/web/search/-33.8188433,150.019201/@-33.81953229,150.0220408,792.73114014a,0d,60y,78.91511563h,92.36631193t,0r/data=CloaMBIqGTwGddvP6EDAIZ1hakudwGJAKhYtMzMuODE4ODQzMywxNTAuMDE5MjAxGAEgASImCiQJDss_B1ffNEARfMLEf0TfNEAZZFdvU6-VY8Ah9l8wgLGVY8AiGgoWWUVhUHZnUm9UTmhNa2ZLMlNRdXNxURAC