Lesotho–South Africa border

The border between Lesotho and South Africa is 909 kilometres (565 mi) long and forms a complete loop, as Lesotho is an enclave entirely surrounded by South Africa. The border follows the Caledon River, the drainage divide of the Drakensberg mountains, the Orange River, the Makhaleng River, and a series of hills joining the Makhaleng back to the Caledon.