Washed downstream.
The Grand Canyon=Rocks!!!!!!!!!!!!!!!!!!!!!!With layers!!!!!!!!!!!!!!!!1=The Grand Canyon=Rocks!!!!!!!!!!!!!!!!!!!!!!With layers!!!!!!!!!!!!!!!!1=
the grand canyon is layers of rock formed over millions of years
The Grand Canyon is important for the study of geology. The Grand Canyon clearly shows the layers of the Earths crust.
in the lowest layers of rock
in the lowest layers of rock
it was glorious outside!
Fossils of armored fish, corals, shellfish, and snails have been found in the Grand Canyon.
to find how old they are and how many layers
They are roots of extremely old mountains that had eroded significantly before being covered with repeated layers of sedimentation from a now extinct inland sea.
Colorado river
It reaches a depth of 6,000 feet.
Erosion, caused by wind and water.