Beech

Where my imaginary line
Bends square in woods, an iron spine
And pile of real rocks have been founded.
And off this corner in the wild,
Where these are driven in and piled,
One tree, by being deeply wounded,
Has been impressed as Witness Tree
And made commit to memory
My proof of being not unbounded.
Thus truth's established and borne out,
Though circumstanced with dark and doubt-
Though by a world of doubt surrounded.

                                   --- The Moodie Forester

-Robert Frost

These excerpts are from “The Poetry of Robert Frost ”,
Edited by Edward Connery Lathem and published by Holt, Rinehart and Winston of Canada, Limited.(1866).
For more information about Robert Frost, see: http://www.robertfrost.org/body.html