Day Twelve – Punululu

beehive domes, cathedral gorge, two elephants. Hot in the sun but great to have been here. Sandstone is very soft but has an iron component which rusts and protects it from weathering. If breeched the inner sandstone erodes quickly.

   
    
    
    
    
    
    
    
 
Echidna gorge. Not far away but quite different geologically. Conglomerate rock of rolled River stones when fast moving water rolled the stones smooth, then eons of time compressed then with silt into a solid mass.