More about the Stampede...
The Dinosaur Stampede at Lark Quarry Conservation Park preserves approximately 3300 dinosaur footprints that were made approximately 95 million years ago by the animals that roamed the land at the time. It's thought that the wet environment at the time contained forests, swamps and flood plains through which the animals walked and ran doing their daily business. As a snapshot of one moment in time, a group, or groups, of animals ran through some mud near a water hole. The footprints left in the mud were covered by sand and mud and then more layers of mud and sand, drying out to become rock buried deep beneath the land surface.
Millions of years later, as our landscape eroded away, parts of the ancient landscape have been exposed, including the edge of the layer of rock that contains those footprints. Through relatively serendipitous circumstances those footprints were uncovered by paleontologists (and a volunteer named Malcolm Lark) in the 1970's and preserved by Queensland Parks and Wildlife as a Conservation Park (Lark Quarry Conservation Park) and was also the first site to be listed on Australia's list of National Monuments (Dinosaur Stampede National Monument).