The Stiperstones once supported a continuous ridge of heathland habitat for about 10 miles. Records showing this continuous vegetation indicate that this area demonstrated the transition in vegetation from southern lowland heath to the northern upland heath communities.
Since the 1950s, the unbroken ridge has become seriously fragmented and habitats degraded. During the late 1990s English Nature developed a project 'Back to Purple’ with the aim of arresting habitat reduction and fragmentation by restoring heathland and surrounding habitats to the Stiperstones.
This work has been catalogued as part of the NNR Record Project.