Balanced rocks survive great flood?
Throughout the world there are many formations a large stone body is balanced precariously. We can tell then some of these formations were not caused by rocks tumbling off a mountain but instead were large rock hills many million years ago and have been eroded away by wind and water such as the one at the right. Because wind erosion is generally not incredibly powerful this means that the formations would have been much the same 4,500 years ago. The time creationist claim was the date of the global flood.
There is a reason that we do not see such balanced rocks in aquatic landscapes. Water is a very powerfully force and when moving would exert hundreds or even thousands of pounds of pressure upon such objects. Had there been a genesis flood these formations would have been knocked over plain and simple.