Millions of years ago the Colorado plateau formed one whole and was relatively flat. About 65 million years ago the plateau bulged upwards because of its internal pressure.
While the plateau moved upward the rivers found their way and wore out their defin...
Millions of years ago the Colorado plateau formed one whole and was relatively flat. About 65 million years ago the plateau bulged upwards because of its internal pressure.
While the plateau moved upward the rivers found their way and wore out their defin...