The AiG site says this
Fossilized dinosaur footprints have been found in these Colorado mines. In Cyprus Plateau Mine (Utah), a fossilized dinosaur footprint was found in the coal seam next to one of the many coalified logs of the plateau.
The pattern of tracks suggests that the animals were fleeing from an imminent catastrophe. Nearby, a huge dinosaur graveyard has been found at Dinosaur National Monument (Vernal, Utah) in Jurassic sediments.
Obviously, the dinosaurs that made these tracks didn’t escape. The catastrophe got them.
This is really very amusing. It is a great example of nonsense from Young Earth Creation "Scientists". These dinosaurs may have been fleeing something but they weren't fleeing Noah's flood. The sediments that these dinosaur tracks are found in sit on top of many thousands of feet of other supposedly flood deposited sediment that stretch over a vast area and constitute the Colorado Plateau. If the catastrophe they were fleeing were Noah's flood their tracks should be at least 10,000 feet lower in the sedimentary layers. It is very like YECs to put out something that totally refutes their "model" as evidence for it and here is another classic example.
One thing about the AiG pages you link to Freedom, they are usually good for a few laughs.
The Frumious Bandersnatch