Rocks exposed in the walls of Grand Canyon testify of the advance of marine waters upon North America during the Flood. How rapid was the advance? What was it like? We may never fully know the answers but there are few places on earth that are better suited for study.

Dinosaur tracks and trackways are found in dozens of places worldwide. They are not particularly rare, but still unexpected. Stratigraphically, they are usually found in sediments thought to have been deposited midway through the great Flood of Noah's day, overlying sediments of marine origin.

Geologists tend to be very provincial. Rarely do they stand back and look at "the whole canvas" of the sedimentary rock record. When they do, some remarkable things emerge. For example, consider the Tonto Group, a succession of three well-layered formations in the lower part of Grand Canyon.

Modern earth science owes quite a debt to both Flood geology and intelligent design. According to some, both movements had their start in the twentieth century, but actually these movements played a big role in the history of geology centuries ago and serve to inspire us today.