Because of its relatively large size, the proposed biosphere reserve is subdivided into four sectors or clusters: Towerkop,
Kammanassie,
Langeberg and St. Blaize. The landscape is characterised by remarkable variety and transition. Along the shore fine-grained sandy beaches and dunes alternate with wave-cut platforms and exposed headlands. Deeply incised river valleys cut into the coastal platform, terminating in estuaries and forming coastal lagoons in places. The
Outeniqua and
Langeberg Mountains separate the coastal region from the
Little Karoo, forming a natural barrier between the southern cape and the interior. Further inland the Kammanassi, Kouga and
Swartberg mountain ranges form the northern and eastern boundaries of the reserve. The Gouritz Cluster Biosphere Reserve is the only area in the world where three recognised biodiversity hotspots converge (
Fynbos,
Succulent Karoo and
Maputaland-Pondoland-Albany). The entire domain falls within the
Cape Floristic Region, the smallest but one of the richest of the six floral kingdoms of the world. The reserve is rich in endemic plant species with more than 670 plant species. Even the arid inland portion of the reserve is rich in endemic species with at least 400 plant species. In terms of fauna, the reserve plays an important role in conserving two unique and threatened populations of
Cape mountain zebra (Equus zebra zebra) and
Bontebok (Damaliscus pyrgargus pyrgargus). Populations of
leopard (Panthera pardus) are also present in most of the mountainous areas. Threatened invertebrates include seven endemic species of the enigmatic beetle genus
Colophon and 14 endemic butterfly species. The reserve includes three recognised UNESCO World Heritage Sites: the
Swartberg Complex,
Boosmansbos Nature Reserve and
Baviaanskloof. == Socio-economic characteristics ==