A few miles above the ruins of this Abbey, on the banks of the River Wye, which runs down the border of Wales and England, Wordsworth wrote one of his most famous poems in 1798.  This might have been the location.

Above: Picture of Tintern Abbey; Symonds Yat, "a few miles above" Tintern Abbey where Wordsworth's poem is likely set; a painting of the Symonds Yat area