The Rockguard Garrison is an outpost guarding the frontier of the Dwendalian Empire against incursions from Xhorhas. Set amongst the Ashkeeper Peaks, it lies at the north side of the Brokenveil Bluffs, while the Ashguard Garrison guards the south side. It forms part of the protective border that the Empire holds to keep the Xhorhasian hordes and creatures from the wastes from wandering in.
The Rockguard Garrison held out after the Ashguard Garrison fell to the Kryn Dynasty in the War of Ash and Light, becoming the focus of the conflict at that point. There was at least one attempted incursion there.