m in the past 250,000 years.

The Rock of Gibraltar forms a peninsula jutting out into the Strait of Gibraltar from the southern coast of Spain. The promontory is linked to the continent by means of a sandy tombolo with a maximum elevation of 3 m. To the north, the Rock rises vertically from sea level up to 411.5 m at Rock Gun Battery. The Rock's highest point stands 426 m near the south end above the strait at O'Hara's Battery.