1morena femeninomorrena femenino
- These are moraines - glacial deposits of sand and boulders - marking the western limit of glacial ice in the Stewart River Valley some 14,000 years ago, during the most recent ice age.
- This relationship suggests that the area of transverse moraines formed below the ice mass that remained in north-central Ireland following early deglaciation.
- A moraine is the ground up debris consisting of everything from giant boulders to fine rock powder which a glacier leaves behind.
- It is also likely that mass movement is much more common during periods when glaciers are retreating; large moraines and steep valley sides are then unstable because they are no longer supported by the glacier.
- Boulder clay, the most widespread deposit, represents the ground moraine of the ice sheet.