• P750263
    • Granite. Trevor Quarry, Trevor,...
    • P750264
    • Granite. Trevor Quarry, Trevor,...
    • P750305
    • Trefor Grey Granite porphyry. Trevor...
    • P750306
    • Trefor Grey Granite porphyry. Trevor...
    • P750307
    • Pink granite porphyry. Trevor Quarry,...
    • P750308
    • Pink granite porphyry. Trevor Quarry,...
    • P750309
    • Trefor Grey Granite porphyry. Trevor...
    • P750310
    • Trefor Grey Granite porphyry. Trevor...
    • P750311
    • Grey granite porphyry. Trevor Quarry,...
    • P750312
    • Ceratophyre. Garn Bodfean, near...
    • P750319
    • Granite [diabase]. Pwllheli,...
    • P750324
    • Granite, pink. Llanaelhaiarn, 6 miles N...