can you describe the last landmark mentioned above?
The Gop is a Neolithic mound, the second largest such structure in Britain.
Clwyd

The Gop is a Neolithic mound, the second largest such structure in Britain being only superseded by Silbury Hill. 
former welsh county replaced by denbighshire and flintshire Clwyd was abolished, and the new unitary authorities of Wrexham, Conwy County Borough, Denbighshire, and Flintshire were created. where is this county located? It is a preserved county of Wales, situated in the north-east corner of the country what are the modes of commuting used here? Railways, Roadways can you name a few famous landmarks here? The Pontcysyllte Aqueduct, The Clwydian Range and Dee Valley, The Gop what is the name of their transportation services? Transport for Wales
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Clwyd [SEP] Landmarks
Other fine country houses in Clwyd include Trevor Hall and Faenol Fawr, Bodelwyddan, while Plas Mawr and Aberconwy House are historic town houses in Conwy. Also in Conwy is the Conwy Suspension Bridge, one of the first such bridges in the world.