Scarce images of life , one here , one there , Lay vast and edgeways ;like a dismal cirque Of druid stones , upon a forlorn moor ,
John Keats , Hyperion .
Thanks tiompan - got a feeling that's on here somewhere; it's on http://megalithicpoems.blogspot.com/ in the July archives of 2006 (preceeded by a bit from Tess of the d'Urbervilles which is also worth a read).