Without Lifting A Finger

        

Missed the geological hike in and around McCready's (given a few clues, I can do my own research: esker and Blue Ridge Road ). * An esker , eskar , eschar , or os , sometimes called an asar , osar , or serpent kame , [1] [2] is a long, winding ridge of stratified sand and gravel , examples of which occur in glaciated and formerly glaciated regions of Europe and North America. Eskers are frequently several kilometres long and, because of their peculiar uniform shape, are somewhat like railway embankments . [from Wikipedia: https://en.wikipedia.org/wiki/Esker ]