This site is notified for its nationally important active coastal geomorphological features.

The site was notified in 1971 for its biological features which show all stages of succession from bare chalk rock to Ash woodland.

The site was officially notified in 1985.

The site was notified in 1987 for its biological value.

The site was formerly notified under the name "Okus Quarries".

King concluded that the site had been salted, and notified investors.

The site was notified in 1986 for its biological features.

The site was first notified in 1994.

The site was notified in 1985 under the Wildlife and Countryside Act 1981.

The site (under its current boundaries) was notified on 26 May 1995, having first been notified in 1972.