Northumberlandia during construction. Image: Creative Commons Creative Commons

Northumberlandia, the world's largest landform replica of a reclining naked woman, is about to be revealed in Britain.

Situated outside Cramlington in Northumberland, it is 112ft (34m) at its tallest point, the forehead, and 1,300ft (400m) long. The landform has been created with 1.5 tonnes of rock, earth, stone and clay.

The sculpture's face, paths and viewing platforms were constructed with a hard stone surface.

The £3 million project was designed by American artist Charles Jencks as a 46-acre community park with free public access and four miles of footpaths.

Jencks started work on the layered structure in 2005.

Princess Anne will officially unveil the new landmark on 3 September, prior to its public opening.

The structure is funded by the Banks Group and the Blagdon Estate and was built as part of the restoration of the Shotton opencast coal mine.

"We held previews and worked with Disability North, amongst other local groups, to make sure the site was as open to everyone as possible, and I think we've succeeded," Katie Perkin, communications manager for the Banks Group, told the BBC.

"To see the world in a Grain of Sand, the poetic insight of William Blake, is to find relationships between the big and small, science and spirituality, the universe and the landscape," said Jencks.

"This cosmic setting provides the narrative for my content-driven work, the writing and design. I explore metaphors that underlie both growing nature and the laws of nature, parallels that root us personally in the cosmos as firmly as a plant, even while our mind escapes this home."

The new park is expected to attract 200,000 visitors annually.