Till exposed in the lower part of the ridge.

Gleann Einich: 

glacial deposition

The lower glen contains many features resulting from glacial deposition related to a readvance of ice from Strathspey around 15-14 ka.

The largest glacial depositional landform is the Cadha Mor moraine. It is markedly asymmetric, with a steep S-facing slope up to 50 m high and >500 m in length. Its shape is consistent with ice moving from Strathspey and this is supported by the sequence of lateral moraines on the flanks of Carn Eilrig.

Looking south up the ramp of the moraine, with the highest moraine ridge in the middle ground.

No rock is exposed and the ridge appears to be made largely of blocky till. Clasts of both schist and granite are present, including large erratics. On the ice-proximal (N) face of the moraine, subaqueous debris flows and tills occur, indicating deposition into a glacial lake in lower Gleann Einich. The former lake bed to the south is marked by massive kame terraces.