Tees Valley Wildlife Trust
The Tees Valley Wildlife Trust is a wildlife trust covering the Tees Valley area of England. Its area of operation corresponds to the four unitary authorities of Hartlepool, Stockton-on-Tees, Middlesbrough and Redcar and Cleveland, covering parts of the ceremonial counties of County Durham and North Yorkshire. Reserves The Tees Valley Wildlife Trust manages fourteen nature reserves with over , including: Notes Grid references use the British national grid reference system (OSGB36), the system used on Ordnance Survey maps. The grid reference for each reserve relates to the approximate centre of the reserve. References External links Tees Valley Wildlife Trust website Wildlife Trusts of England Organisations based in North Yorkshire Organisations based in County Durham