Representative sample of Upper ashes of Arenig (Llandillo) Fearnsides QJGS 1905 collected adjacent to and at site of proposed Liverpool reservoir-Llyn-Tryweryn-Mawr. See also HW. 1001 (sliced rock E32103)
Locality details
Temporary section in trench for generating house. 100 Yds. below dam on N. side of river.