June 29, 2015
Monday Geology Picture: The Three Sisters, Blue Mountains, Australia
Posted by Evelyn Mervine
This week’s Monday Geology Picture was taken during my recent vacation in Australia. One day my husband and I drove outside of Sydney to spend some time exploring the Blue Mountains. One of the tourist attractions that we visited is a lovely rock formation known as The Three Sisters. This rock formation was carved (by erosion) out of ~250 million year old sandstone.