The Grand Canyon is nice, but don't miss the dynamic features that receding glaciers left behind right in our back yards. Join Merry Lea's Director Emeritus Larry Yoder for a geology lecture and tour at Merry Lea followed by a driving tour to selected locations. Featured sites include Merry Lea's esker and peat deposits, cross country stops at Noble County's Mississinewa and Salamonie Moraines, and a visit to the Eel River Sluiceway and Cedar Creek Tunnel Valley in northern Allen County. Meet at the Glacial Retreat Center.