"The Snowfly" by Joseph Heywood

I just came across this book by Joseph Heywood. "The Snowfly" is about a Michigan writer / flyfisherman who is in search of a very rare hatch known as the Snowfly. Heywood considers it to be a book not only about fly fishing but also about obsession. I think it sounds interesting enough that I will add it to the Angler's Bookshelf section at flyfishmagazine.com.