4 Perhaps the most baffling observation, even to evolutionary geologists, is that the Grand Canyon cuts through, not around, a great plateau. It appears to cut right through this uplifted wall of rock, which lies three thousand feet above the adjacent Marble Platform to the east.5 Indeed, the headwaters of the Colorado River are at a lower elevation than the top of the Kaibab Plateau through which the Grand Canyon has been cut (figure 5).
Ranney, in his 2005 book Carving Grand Canyon: Evidence, Theories, and Mystery, said: Oddly enough, the Grand Canyon is located in a place where it seemingly shouldn’t be. This third observation also has profound implications concerning the origin of the Grand Canyon.
Thirty years ago, most evolutionists believed the canyon was about 70 million years old.
But that estimate changed as radioisotope dating was utilized to show the plateau to be much older than the canyon itself.
The fatal blow against it came with radioisotope dating of the rim rocks.