George R.r. Martin said this quote
“ Yet even so, Jon Snow was not sorry he had come. There were wonders here as well. He had seen sunlight flashing on icy thin waterfalls as they plunged over the lips of sheer stone cliffs, and a mountain meadow full of autumn wildflowers, blue coldsnaps and bright scarlet frostfires and stands of piper's grass in russet and gold. He had peered down ravines so deep and black they seemed certain to end in some hell, and he had ridden his garron over a wind-eaten bridge of natural stone with nothing but sky to either side. Eagles nested in the heights and came down to hunt the valleys, circling effortlessly on great blue-grey wings that seemed almost part of the sky. ”