Photos 43. Well preserved lateral moraines formed by a small Late Quaternary valley glacier in Cwm Graianog, on the south side of the Nant Francon valley, Snowdonia. A larger valley glacier would have also flowed down the main Nant Francon valley towards the observer. The sharp peak of Tryfan in the distance was sculped by two valley glaciers, which excavated the deep corries of Cwm Bochlwyd and Cwm Tryfan on either side. The main Nant Francon valley contained an ice excavated lake at the end of the Ice Age, but this has since been filled by fluvial deposits and peat.
Photos 43. Well preserved lateral moraines formed by a small Late Quaternary valley glacier in Cwm Graianog, on the south side of the Nant Francon valley, Snowdonia. A larger valley glacier would have also flowed down the main Nant Francon valley towards the observer. The sharp peak of Tryfan in the distance was sculped by two valley glaciers, which excavated the deep corries of Cwm Bochlwyd and Cwm Tryfan on either side. The main Nant Francon valley contained an ice excavated lake at the end of the Ice Age, but this has since been filled by fluvial deposits and peat.