The beautiful rocky shores and mountains of pink granite in Acadia National Park have attracted visitors from all over the world. Where did all that granite come from? Written by the Society's board members Duane and Ruth Braun, this illustrated, full-color guide to the geology of Mount Desert Island, Maine and Acadia National Park, unlocks the mystery for explorers, hikers and geology buffs. Through self-guided trips with stops at 31 points of interest, the book explains the origin of our spectacular scenery and the forces that shaped it.

Your purchase of this unique guide helps support the Society and the museum. It is available at our gift shop and many online booksellers.