Work has begun to secure the future of an iconic part of Cornwall's industrial heritage, whose mineral wealth once led it to be called the Richest Square Mile on Earth.
The £270,000 project, funded by Natural England, will be used to consolidate mine buildings at the Taylor's and Davey's sites in the Wheal Maid Valley at Gwennap, near Redruth, which is part of the World Heritage Site.
Although few of the original buildings have survived, the grant will allow work to preserve what is left, in particular two engine houses which are some of the oldest in the area.
The buildings are already in a state of decay and it is feared that without the work they would soon be beyond saving.
Cornish Mining World Heritage Site research and information officer Ainsley Cocks said the project was the fruition of work which started in 2009.
"The conservation of features within the World Heritage Site is a key requirement of UNESCO and through working in partnership with Gwennap Parish Council and Natural England we are now in a position to use this funding for the good of Cornwall's internationally important mining heritage."
Kevin Furnish, chairman of Gwennap Parish Council which owns the site, said: "Taylor's and Davey's are wonderful assets and we hope in later stages to significantly enhance access to the sites."