Wales Marilyns Map of Wales Marilyns. Click on pins to view mountain details. The mountain guide has mountains listed..... Aberystwyth to Welshpool Anglesey and the Lleyn Peninsula Bala to Welshpool Barmouth to Betws-y-Coed and Bala Carmarthen to Vale of Neath Dolgellau to Machynlleth Llandovery to Monmouth Llandudno to Wrexham Neath to Chepstow Snowdonia South-West Wales Welshpool to Hay-on-Wye