The £1.5m scheme is underway to landscape a former landfill site in Pelsall, Staffordshire.
Wyrley Grove was used as a landfill site for industrial and commercial waste for 13 years until it was closed last year.
Now contractors are working on a huge landscaping scheme to transform it into a place for wildlife and grazing sheep.
Before beginning landfill operations, Cleansing Service Group (CSG) covered the entire site base with a plastic liner to prevent the escape of contaminants to land and ground water.
"We've taken the best expert advice we could find and worked closely with the relevant authorities to ensure that what has been, in effect, a brownfield site since the 1850s will soon be green again and returned to its natural state," said CSG managing director Paul Quigley.
Hundreds of woodland trees will be planted, including oak, rowan, birch and willow, while other areas will be seeded for grassland.
A drainage system across the site will take water to a large, newly created pond which is being designed to encourage wildlife to Wyrley Grove.
The scheme also includes a marshy area, which will be created and planted to encourage biodiversity, and a wildlife corridor to help species migrate across the site.
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