This may interest you bro:

Places of Special Virtue: Megaliths in the Neolithic Landscapes of Wales. By Vicki Cummings and Alasdair Whittle.

http://www.amazon.co.uk/exec/obidos/ASIN/1842171089/qid%3D1140790988/202-4888959-7183004

Synopsis:
This volume explores the landscape settings of megalithic chambered monuments in Wales. Set against a broader theoretical discussion on the significance of the landscape, the authors consider the role of visual landscapes in prehistory, meanings attached to the landscape, and the values and beliefs invested in it. They assess the significance of a variety of landscape features which would have been visible from the monuments, in particular emphasising the mythological and symbolic significance of the sea, rivers and mountains. An illustrated inventory of sites completes the volume.