Heidelberg is a town with 70,707 inhabitants in the Gauteng

Gauteng

Gauteng is one of the nine provinces of South Africa. It was formed from part of the old Transvaal Province after South Africa's first all-race elections on 27 April 1994...

 province of South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

 at the foot of the Suikerbosrand (Sugarbush Ridge) next to the N3 highway, which connects Johannesburg

Johannesburg

Johannesburg also known as Jozi, Jo'burg or Egoli, is the largest city in South Africa, by population. Johannesburg is the provincial capital of Gauteng, the wealthiest province in South Africa, having the largest economy of any metropolitan region in Sub-Saharan Africa...

 and Durban

Durban

Durban is the largest city in the South African province of KwaZulu-Natal and the third largest city in South Africa. It forms part of the eThekwini metropolitan municipality. Durban is famous for being the busiest port in South Africa. It is also seen as one of the major centres of tourism...

.
Heidelberg began in 1862 as a trading station built by a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 H.J. Ueckermann. A town was laid out around the store and named after Ueckermann's alma mater

Alma mater

Alma mater , pronounced ), was used in ancient Rome as a title for various mother goddesses, especially Ceres or Cybele, and in Christianity for the Virgin Mary.-General term:...

.

Heidelberg is some 50 kilometres south-east of Johannesburg, close to the Mpumalanga border.