That is the name of geological formation here in Utah that contains the dinosaurs. Lots of them. The best description for this formation is like melted neapolitan ice cream. It has colored stripes and they sort of run together because of erosion. The big attraction here at Dinosaur Nat’l Monument is the fossil wall with over 1500 dinosaur bones still in place as found. BUT, it is closed because of major repairs (actually rebuilding) of the exhibit hall. So, another time. We did get to walk along another section of the formation and see and touch dino bones still in the rock wall. Pretty cool.