It also overlooks Rosia Bay from the north, as does Parson's Lodge Battery from the south.

During World War II, the British Army stationed a battery of four 3.7" and two Bofors quick-firing anti-aircraft guns at the site.

In 1945 they almost fired upon an Iberia Airlines Junkers Ju 88 that had wandered into Gibraltar's airspace while on a flight from Málaga to Tetouan.

[3] The "Rockbuster" was last fired in 2002 (with a very small signaling charge) to mark the 2002 Calpe Conference between Gibraltar and Malta.

In 2010 Gibraltar and Malta jointly issued a four-stamp set of stamps featuring the two countries' 100-ton guns.