Published online by Cambridge University Press: 01 May 2009
In the neighbourhood of Pont-erwyd and Devil’s Bridge in North Cardiganshire, the Afon Rheidol flows through a series of gorges; and it seems probable that these have not all of them the same history.
1 Compare the post-glacial diversions of the Dee (Wills, L. J., Quart. Jour. Geol. Soc., Ixviii, 1912, 180), and those in Caithness (Crampton, C. B., Mem– Geol. Surv., 1914, 152).CrossRefGoogle Scholar
1 This fall is shown on the photograph of the Geological Survey, No. A 387.
2 Geological Survey collection, No. A 389.