The prehistoric past can perk up the present. When woolly mammoth bones were found in my hometown in Wisconsin years ago, they became the centerpiece of one of our local museums. Today, they continue to attract visitors and serve as one of the city’s informal symbols.

Unfortunately, the story across much of the fossil-rich West is more abandonment than local fame. During the late 19th century, paleontologists made huge finds in the region, excavating specimens of famed dinosaurs like Triceratops, Stegosaurus, Diplodocus and Allosaurus.

But like many would-be movie stars, the bones ended up leaving their rural sites to find fame in the big cities. Left behind were holes — literally, in the case of the dinos.