In the booksEdit
In the A Song of Ice and Fire novels the Boneway is the colloquial name for the Stone Way. Its Dornish side is guarded from the castle Yronwood, the seat of House Yronwood, which holds the title of Warden of the Stone Way. The path runs north past the Wyl and ends at Summerhall in the Dornish Marches.
The Boneway is one of two major passes through the Red Mountains, the other being the Prince's Pass further west. The Boneway might be thought of as the more important of the two, given that it is closer to the coast and Storm's End (hence why Brienne's animated Histories & Lore featurette calls it "the" pass through the mountains).
- The Boneway at A Wiki of Ice and Fire (MAJOR spoilers from the books)
Roads of Westeros