Submitted by admin on Fri, 01/12/2018 - 14:27
Fieldtrip: 
Virtual Altiplano
Latitude: 
-22.24365000°
Longitude: 
-68.15700000°

Castle Rock is a formation comprised of layers of ignimbrite that have been eroded into the shape of a castle. Most ignimbrites are units of the Toconce Formation and the identifiable pink layer at the bottom is Sifon Ignimbrite, 8.1 Ma.