Some of the earliest archaeological sites in Auckland are found on Motutapu Island, Ponui Island, Wattle Bay in the south of the Manukau Heads, and Matukutūruru (Wiri Mountain), however it is likely that early Māori settled widely in the area. From early occupation until European contact, the economy of the region was centred around horticulture (mostly root vegetables such as kūmara (sweet potato)), fishing and shellfish gathering. However, some areas such as Motutapu Island and the Ōtāhuhu/Mount Wellington area had specialised areas to produce "toki" (stone adze).