This mine is the modern day site of the iron ore mining in Swaziland. The Ngwenya mountain had a large deposit of iron ore of which 2,8 million tons was mined and exported by a purpose built rail to Maputo (Lourenco Marques) and the by purpose built Norwegian cargo ships to Japan. The gaping opencast mine is truly something to behold. The mine did however destroy on early Iron Age mine, but left one perfectly intact. The accompanying visitors centre is a must to understand the history of mining in the area.