We will begin with how the glaciers helped form the Ohio River in our area. Then to Kentucky to see how limestone helps form the bones of horses and stalactites in Mammoth Cave. Then look at more karst topography in Vietnam. Next to our Pacific Northwest and the Scablands to see how they were formed by melting glaciers and the Missoula Floods. Finally we'll study erosion in arid areas like Utah and Arizona, examine damage caused by earthquakes and tsunamis, and conclude with the formation of the Appalachian Mountains.

Moderators: Rick Takanen joined OLLI in 2009, after retiring from GE Aviation, and currently serves on the Board. He graduated from Worcester Polytechnic Inst. in Massachusetts with an engineering degree. Richard Longshore, MD, is a graduate of XU and Univ. of Louisville College of Medicine. He is not a geologist or astrophysicist, but has a keen interest in what's around us.