Mount Diablo is much more than a landmark for map makers. It’s the home of a rich array of flora and fauna, varieties of life existing in a unique urban-rural interface. Mr. Marchiano, a native of the region and avid collector-student of its living forms, will guide us through a survey of the plants and animals who inhabit our iconic mountain. No matter if it’s a reptile, insect, or mammal, he knows them all and probably has specimens in his personal collection. And that’s without mention of the vast array of plants, from poison oak to live oak. The state of California acquired enough land in 1931 to create a small state park around Mount Diablo’s peak. The Park’s been growing ever since. Let OLLI and Mr. Marchiano show you what treasures it contains.