Section 3 of the Wildlife and Countryside (Amendment) Act 1985 requires the National Park Authority (NPA) to prepare a map of any areas of mountain, moor, heath, woodland, down, cliff or foreshore (including any bank, barrier, dune, beach, flat or other land adjacent to the foreshore), whose natural beauty it is, in the opinion of the NPA, particularly important to conserve.
Moor
An area of acid soil with a peaty surface horizon of variable depth, bearing plant communities typical of bog or moss formations, or acid grassland in which ericaceous species are not abundant but bracken may be present as an invasive species.
Heath
Areas where trees or tall shrubs are sparse or absent and in which the dominant life form is that of the evergreen dwarf shrub particularly represented in Ericaceae.
This data though was surveyed in 1990
