The Bamboesberg is a South African mountain range in the Eastern Cape

Eastern Cape

The Eastern Cape is a province of South Africa. Its capital is Bhisho, but its two largest cities are Port Elizabeth and East London. It was formed in 1994 out of the "independent" Xhosa homelands of Transkei and Ciskei, together with the eastern portion of the Cape Province...

, and was named for the bamboo Arundinaria

Arundinaria

Arundinaria, commonly known as the canes, is the sole genus of bamboo native to South Africa and eastern North America and the only temperate bamboo in North America. The genus is endemic to the eastern United States from New Jersey south to Florida and west to Ohio and Texas...

 tesselata growing in its ravines. It is a westward spur of the Stormberg Mountains

Stormberg Mountains

The Stormberg Mountains are a range of mountains situated in the Eastern Cape province of South Africa and are a subsection of the greater Drakensberg mountain range. They form part of the 'Amatola and Stormberg' region which includes major towns like Grahamstown, East London and Port Alfred.Towns...

 and forms a watershed between the south-flowing Tarka and Black Kei Rivers, and the Stormbergspruit which is a tributary of the Orange River

Orange River

The Orange River , Gariep River, Groote River or Senqu River is the longest river in South Africa. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean...

. Some of its peaks are over 6000 ft - Aasvoëlberg, 35 km west of Sterkstroom, rises to 7245 ft.

The rocks are composed of sediments of the Stormberg Series of the Karoo System

Karoo System

The Karoo System or Karoo Sequence, is a geologic system of rock formations covering 1 500 000 square km and extending from the Equator south to the Cape of Good Hope...

.