TWO TREES AND AN INSECT

Quiz time: 1. Can you name a common California tree that has a huge, poisonous seed that looks like a deer's eye? 2. How about a tree that contains a painkilling chemical and attracts North America's longest-lived butterfly? The answers lie in the 11th installment of our MITCHELL CANYON guide, presented by Mount Diablo Interpretive Association in partnership with Save Mount Diablo.

First published in 2012, revised in 2017. Music from Banks of the River by Phil Heywood. Photos by Scott Hein (and others mentioned in closing credits) Narration and production by Joan Hamilton.