Petts Quarry worked by Kirkstone Green Slate Company is just to the Ambleside side of the summit.
Caudale slate mine is a few miles further down, on the Ullswater side, and was last worked at the beginning of the 20th century; all its adits are now blocked.
The name of the pass comes from a prominent stone, the Kirkstone, which stands a few yards from the A592 on the Patterdale side of the inn.
In Cue For Treason, best-known novel of children's writer Geoffrey Trease, much of it set in Cumbria, the narrator's friend long uses the name "Kit Kirkstone", taken from the pass.
[6] "Witch of the Westmorland" by musician Archie Fisher includes the lyric "weary by Ullswater, and the misty brake fern way, down through the cleft of the Kirkstone Pass, the winding water lay".