The three Trust estates (High Peak, South Peak and Longshaw) include the ecologically or geologically significant areas of Bleaklow, Derwent Edge, Hope Woodlands, Kinder Scout, Leek and Manifold, Mam Tor, Dovedale, Milldale and Winnats Pass.
Od leta 2010, je to peti največji narodni park v Angliji in Walesu.