Two Sites of Special Scientific Interest (SSSIs) lie within the area of Delamere Forest owned by the Forestry Commission. Black Lake () is an example of the rare quaking bog or "schwingmoor" habitat, a type of bog in which bog vegetation forms a raft which floats on top of water. The site is particularly notable for including the very earliest stages in quaking bog development, although all stages are present, from open water to largely consolidated "schwingmoor" in the process of colonisation by Scots pine. In addition to "Sphagnum" species, common sundew and the locally rare white sedge are present. The site is managed by Cheshire Wildlife Trust and forms part of the Midland Meres and Mosses Ramsar site.