HEIDELBERG, the name of two towns in South Africa: (a) 31' S., 22' E. Altitude, 5,026 feet. Pop. (1931), white and about 1,500 natives. The town is built on the Blesbok spruit, just on the south-eastern side of the Witwatersrand gold fields. It is situated in the Transvaal, 42 m. S.E. of Johannesburg, and 450 m. from Durban. The town possesses five schools and a training college. The District of Heidelberg extends southward to the Vaal river, and is part of the great maize triangle of South Africa. (b) 34° 5' S., 20° 59' E., situated on the Duivenhoeks river in the Cape Province, loo ft. above sea-level. It is a small town with a white population of 1,041 (1931), and about an equal number of coloured people. The principal productions of the district are wool and aloes.