GEMIS: Groote Eylandt development progress report
Manganese Mine development: Abstract: Development of the manganese ore deposits on Groote Eylandt prior to the Agreement dated 9th September, 1969, was carried out in two stages, namely: Stage 1 Development: Facilities were established to enable a production rate of 200,000 tons per annum of lump manganese of metallurgical grade to be achieved.