Houghton Quarry is an abandoned quarry, formerly used to extract chalk for a cement works onsite (which is no longer there). Quarrying stopped about 40 years ago, but, due to its size and terracing, only parts are overgrown, leaving an enormous amount of clean chalk. A large amount of this consists of boulders of various sizes on the quarry floor, yielding many good fossils. Collecting is not allowed here. Cretaceous, Disused Quarry, Rating: ♦♦♦♦