Plans for a potash mine four miles south of Whitby have been submitted to the National Park authority in the North York Moors.
The company behind it says that it will invest a billion pounds into the mine - creating thousands of jobs in the Sneaton area.
However, opponents say that they are worried that it could spoil one of England's most beautiful areas.
Watch the full report from Frances Read below.
More top news
Asbestos fly tipping has doubled in the last nine months costing over £10,000 according to Northumberland County Council
Paramedics tried to save Parminder Dhinsa by performing open-heart surgery by the roadside but the mum-of-two later died in hospital
Terrified children were in the shop when a masked Peter Reynolds burst in brandishing what staff thought was a shotgun