|THE DERRICK AT PORTLAND BILL|
The stone is also exported to many other countries - for example it was used in the construction of the United Nations Headquarters in New York city in the USA.
The stone is a Limestone from the Tithonian stage of the Jurassic period.
A few hundred yards from Portland Bill lighthouse (which was shown in a recent posting ) can be found this Derrick. Cut stone slabs used to be transported from this point by sea to various destinations. A Derrick was used to lift the stone on to the sea going barges.