A quarter of the trees in much of Appalachia were chestnut, and you could grow about as much pork on an acre of chestnut as you could on an acre of corn ... and the acre of chestnut did not need to be level.

But then the chestnut blight hit.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.