Definition of "vale"

In those fair vales, by nature form'd to please, / Where Guadalquiver serpentines with ease,

1767, Walter Harte, “The Vision of Death”, in The Works of the English Poets, volume 16, published 1810, page 370

"Make me a cottage in the vale," she said, / "Where I may mourn and pray.

1832, Alfred Tennyson, The Palace of Art

Beyond this vale of tears / There is a life above,

a. 1854, James Montgomery, “Hymn 214”, in The Issues of Life and Death