A bird’s-eye view

Watch this fly-through of the river valley. How would this landscape have looked different during the Cretaceous Period?

A river below cuts through a valley covered in conifers. Mountains in the distance, mostly covered in trees, have bare patches from erosion. The water wraps around an island of loose rock strewn with pieces of driftwood. It splits in two then flows back together as it winds along. The river continues on winding through the valley bending back and forth between its rocky banks.