In the southwest, running parallel to the coastline, the mountains of the Cape Fold Belt form a series of ranges that run in the form of an L by a series running north-south, and another set running east-west, with the junction between the two at the Cape Peninsula. The north-south ranges, paralleling the Atlantic coastline, include the Cederberg and the Groot Winterhoek and have peaks close to 2,000 metres high. The east-west ranges, paralleling the southern coastline, include the Swartberg and the Langeberg with peaks exceeding 2,200 metres. The mountains of the Cape Fold Belt form the southern and western boundaries of the Great Karoo. The other boundaries of the Great Karoo are arbitrary and ill-defined. To the north the Karoo grades into even more arid Bushmanland. To the north-east, the Orange River is often regarded as the boundary between Karoo and the Highveld. To the east the Karoo fades into the grasslands of the Eastern Midlands.