Robert Macfarlane, whose latest book is "Underland: A Deep Time Journey" is interviewed by host Richard Wolinsky.

The author of several books, including "Mountains of the Mind" and "The Old Ways," Robert Macfarlane discusses his latest work, a travelogue through caves, glacial crevices, mines, and catacombs, as he examines the world below our feet.

Extended 43-minute Radio Wolinsky podcast. [1]

[1] https://kpfa.org/area941/episode/robert-macfarlane-underland/