Geology, Switzerland, Graubunden, Bergell Tal, Rundhoecker
"Rundhoecker im Bergell-Tal im Graubuenden"
Wood engraving made after a photograph ca 1900.
Original antique print
On the reverse side is unrelated text.
Image: 17 x 11.5 cm (6.6 x 4.5")
In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier. The passage of glacial ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the "stoss" (upstream) side of the rock and plucking on the "lee" (downstream) side.