Maentwrog: Invertebrate & Lepidoptera Math Eitemau Uwchlwytho gan 'A Dedicated Naturalist', the Mary Gillham Archive Project
Garth Isaf, Little Garth, Gwaelod y Garth: Invertebrate & Lepidoptera Math Eitemau Uwchlwytho gan 'A Dedicated Naturalist', the Mary Gillham Archive Project
