Mpumalanga lies in the North-Eastern corner of South Africa; it is bordered by Limpopo in the north, Mozambique and The Kingdom of Swaziland in the east, Gauteng and Free-State in the west, and KwaZulu-Natal in the south. Mpumalanga makes up 6.5% of South Africa's land area, an area larger than Belgium and the Netherlands combined.
The province is situated mainly on the high plateau grasslands of the Middleveld. In the north-east, it rises towards mountain peaks and then terminates in the immense Drakensberg Escarpment. In some places (e.g. God's window) this Escarpment plunges hundreds of metres down the low-lying area known as the Lowveld. The area in the east below the escarpment is subtropical bushveld (the southern part of the Kruger National Park is in this area).
Lake Chrissie is the largest natural freshwater lake in South Africa and is well-known for its variety of aquatic birds, especially flamingos.