[3] It works across the ceremonial counties of East, North, South, and West Yorkshire; with the exception of the Sheffield District and some of Rotherham District, where the separate Sheffield and Rotherham Wildlife Trust operates,[4] and the Unitary Authorities of Middlesbrough, Redcar and Cleveland, and Stockton-on-Tees, where the separate Tees Valley Wildlife Trust operates.

[8] Although originally founded to manage nature reserves; much of the Trust's impact is now achieved by collaborating with and supporting other land owners and land managers to contribute to the recovery of Yorkshire's nature.

[9] Of particular note, the Trust is recognised as a world leader in peatland restoration.

Having supported land owners to restore over 30,000 hectares of peat across the county since the mid-2000s.

[10] The Trust also has a marine conservation programme, with a particular focus on seagrass and oyster restoration in the Humber Estuary.