This is really cool! Also really nice of you to add the pictures so we don't have to go looking ourselves!

To be honest I thought the title was referring to the fossils, like they were fossils of giants footprints. When it actually refers to a quote from someone saying all the rocks in the river were overturned by the cyclone: "It's like a giant has walked down the stream-bed, kicking at rocks and boulders as if they were pebbles and turning everything over as he goes."

Probably deliberately picked to get you to click. It worked on me.