Please note: this site is currently undergoing refurbishment and is not open to the public.
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O’Hara’s Battery
Located at the highest point of the Rock of Gibraltar and owing its name to General Charles O’Hara, Governor of Gibraltar between 1795 and 1802.
The first 6-inch cannon was mounted in 1890 but was replaced in 1901 by a 9.2-inch cannon with a range of 29,000 yards (26km), aided to some extent by its height above sea level.