Tongwynlais: Landscape & Mammal Math Eitemau Uwchlwytho gan 'A Dedicated Naturalist', the Mary Gillham Archive Project
River Taff, Morganstown: Landscape & Mammal Math Eitemau Uwchlwytho gan 'A Dedicated Naturalist', the Mary Gillham Archive Project
Taff River, Tonqwynlais: Landscape & Mammal Math Eitemau Uwchlwytho gan 'A Dedicated Naturalist', the Mary Gillham Archive Project
Dyfrgi a brithyll: tacsidermi gan J. Hutchings, Aberystwyth Math Eitemau Uwchlwytho gan Casglu'r Tlysau
