The Great Mine was a large cavern opposite the Le-Koro and Ta-Koro highways. It was the greatest of the Onu-Matoran mines and a work place for many Onu-Matoran, including Mamru, Taipu and an Onu-Matoran prospecter wearing a noble Matatu, named Azibo.
When Takua came here, they found a sundial that led to a room that had a golden mask. It was revealed later to be an entrance to Mangaia.
The Great Mine was flooded when the Gahlok invaded Onu-Koro. The flooding had a large economic effect on Onu-Koro. The Great Mine was later abandoned once the Matoran returned to Metru Nui. The Bohrok later destroyed it when they cleansed the island.
|Papa Nihu Reef • Onu-Koro Highway • Great Mine • Cavern of Light • Onu-Koro Kolhii Stadium • Whenua's Hut|
Nuparu's Hut • Onepu's Hut • Ussal Stables • Zemya's Shop • Temple of Prosperity
|Mata Nui (v|e)|
|Ta-Wahi (Ta-Koro) • Ga-Wahi (Ga-Koro) • Le-Wahi (Le-Koro) • Po-Wahi (Po-Koro) • Onu-Wahi (Onu-Koro) • Ko-Wahi (Ko-Koro) • Kini-Nui|