Sefydlwyd y Grŵp i ystyried argymhellion Adroddiad Marsden ar ddyfodol tirweddau dynodedig Cymru.  Cyflwynwyd 69 o argymhellion i gyd, amrywiol iawn eu cwmpas.
The Group was established to explore the recommendations of the Marsden Report into the future of Wales’ designated landscapes, which provided 69 recommendations, the range and scope of which were considerable.