For many years The asbestos mine was Swaziland's biggest foreign exchange earner. Havelock, a mining town characterised by terraced miners’ dwellings built against the mountain slopes, is situated near the sprawling frontier town of Bulembu. The mine came into operation in 1938 following the discovery of asbestos deposits in the valley.
The was an aerial cableway built in 1938, the aerial cableway linking the Havelock asbestos mine with Barberton dominates the slopes of the Makhonjwa Mountains. The 20,36-km-long cableway is supported by 52 pylons, with the longest unsupported span being 1 207 m and the highest point above the ground being 189 m. The cableway was built to bring asbestos to the Barberton railway station and to transport coal on the returning cocopans to the Bulembu power station. Able to carry loads of up to 200 kg per pan and moving at a speed of 11 km per hour, the cableway has a capacity of 13,5 tonnes per hour.
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