Drumlins of Clew Bay, Ireland
July 03, 2015
Drumlins are most often explained as features created while the glacial front is melting back. The glacier pushes up and over debris that the ice is moving forward. An inverted spoon shape is the classic form; a narrow ridge elongated in the direction of ice flow. Many are steepest on the upstream side and trail off toward the newly exposed ice-free area. The drumlins above show wave erosion creating till banks at the sea’s edge. This is a result of sea level rising as the glaciers melted.
Drumlin fields can be found worldwide, even in densely populated locales such as the area around Boston Harbor. Photo taken on May 12, 2015.