Where the stream swung under a cliff
There was a big boulder, roughly the shape
Of a bull bison lying down.
Of summers up there. Winter sunlight (often subtle,
As there, in its treatment of what it crosses)
Reached in and warmed it a bit on the south end.
And keeping his pack on leaned with a bare hand
On the shoulder of stone at the north end. The cold
Stored inside it from last night went into his palm.
With its dark iron tones, deep in chill shadow,
Bore a crop of lichens, round patches, with edgings,
Flower-like in many shades of subdued
Of moss, some olive-green and very bright, even
In that shade, some a fresh brownish green, in velvety
Low mounds: a sort of park for the eye to wander in
He'd studied for years -- the attraction that all
The boulders up here have exerted on him, in all
Their shapes and sizes: say, showing their backs