Join a naturalist to discover what makes up the "living skin" covering the rocks along the ledges. Learn how a mushroom and algae took a "lichen" to one another, all while we learn about the geology of the ledges.Participants must wear a mask and be prepared to maintain social distance from others. ADVANCE REGISTRATION IS REQUIRED AND BEGINS 5/11: 330-865-8065. LP/Twinsburg Ledges