Altitude 6m a.s.l
Mount Sion is an extensive series of cliffs running east from the large valley east of Bulliber to the valley west of Greenham Common. It is split into three sections, the first and smallest of which is Mount Sion West.
Approach from Stack Rocks in 20 mins.
The crag is in Range West, an Army live-firing range. Briefed climbers (with a valid permit) can access the crag year round when the range is not live (all weekends & on Bank Holidays plus some weekdays). Night firing normally occurs on Tuesday & Thursday but may also alternate to Monday & Wednesday.
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