This two-session set of field walks on Monday, July 19 and Tuesday, July 20 from 1 – 4 pm with geologist Robert Doyle provides exposure to the fascinating rocks of the Coastal Maine Botanical Gardens and an overview of the geological history of Maine. The first day examines the Lerner Garden of the Five Senses and Great Lawn, focusing on folding, faulting, and metamorphic rocks. The walk will continue with an exploration of glacially-shaped “sugarloafs” along the Birch Allée, concluding at the Rhododendron Garden’s waterfall. On the second day, you’ll traverse the Haney Hillside Garden to study the Back River fault, the incredible rocks placed along the hillside and in the Meditation Garden, and numerous shoreline features. This class is geared for beginners and anyone interested in learning more about local geology.  $45 for CMBG members, $55 for non-members.  Meet in the Visitor Center.  To register, or for more information, log on to www.mainegardens.org, or call 207-633-4333.