Câirn, n.

noun

[Ir., Gael., & W. carn, heap.] 1. A heap of stones of a rounded or conical form, erected by the early inhabitants of the British Isles, apparently as a sepulchral monument. Now here let us place the gray stone of her cairn. Campbell. 2. A pile of stones heaped up as a landmark, or to arrest attention, as in surveying, or in leaving traces of a party, &c. C. Kingsley. Kane.