Sawn Rocks, remnant of the Nandewar Volcano of 21 million years ago: ’organ piping’ trachyte columns formed as magma cooled and shrank slowly from the

---

Sawn Rocks, remnant of the Nandewar Volcano of 21 million years ago: ’organ piping’ trachyte columns formed as magma cooled and shrank slowly from the outside inwards, forming shrinkage cracks in pentagonal patterns. Mount Kaputar National Park, Western Plains, New South Wales, Australia

---

Size: 3425px × 2303px
Photo credit: © Jaime Plaza van Roon/AUSCAPE / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: auscape, australia, basalt, basaltic, cliff, columnar, columns, formation, formations, geological, geology, geomorphology, jaime, jointing, kaputar, landscape, mount, nandewar, national, nature, organ, park, pentagonal, pipes, piping, plaza, rock, roon, scenery, scenics, sheer, steep, trachyte, unspoiled, van, volcano, wilderness