Crossing the Craton

With his Pulitzer Prize-winning Annals of the Former World, John McPhee explores not only the richly varied surface of the United States, but the geological wonders hidden deep beneath our feet. In this final book of the series, he embarks on a fascinating journey across the basement of the continent-the land masses forming Illinois, Iowa, Nebraska, and thereabouts-with a professor and geochronologist acting as a guide.

Whether Randy Van Schmus is out in the field with his students, or grind...