Canyon of the Great Spirit

When the First Matoran migrated from the sinking Dromii, lead by Toa Hangi, they came to Manuin and after much of struggling they found a canyon where they could settle and continue living. Toa Hangi sacrificed his Toa Power to make the canyon a place of light, and a safe place to live in, and he became a Turaga. He then named the canyon, The Canyon of the Great Spirit.

The Matoran forgot their past over time in their new canyon and lived normal life until they started suffering from the Makaatus dangers. At one point, Makaatu captured all the Matoran from the canyon and took them away, followed by the Toa who freed them. But the tunnel they fough in collapsed, and there was no way back to this canyon, so they made another one, the Hangi Canyon.

Canyon of the Great Spirit has since been deserted.