Crossone is a lower neighbour on the eastern side of Slieve Donard, north of Chimney Rock Mountain. Its 540 m summit sits well below Donard.
- Summit height
- 540 m
Find your bearings
Open in OpenStreetMap ↗See where this place sits in the Mourne landscape before planning your visit.
From the coast to the high ground.
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Loading the map connects to OpenStreetMap. Pins show locations, not a walking route or permission to enter.
Planning a walk
Choose a route that suits your group and check access before setting out. Take a current map and know how to use it. Even the lower hills can have rough, steep or exposed ground.
Sources & height notes
Map-published elevation; independent summit survey not verified. Not total ascent.
Locations are based on mapped summit points. For walking directions, use a current map and your chosen route.
Data licence: ODbL 1.0. Source credits.
OpenStreetMap contributors — Geofabrik snapshot 6 October 2026
Checked 2026-10-08: OpenStreetMap contributors — Geofabrik snapshot 6 October 2026 · Geofabrik regional OSM extract · OpenStreetMap attribution and ODbL licence.