Otuataua Stonefields Historic Reserve

Ihumātao is an archeological site of historic importance in the suburb of Māngere, Auckland. Once a pā site, it stands on the Ihumātao Peninsula, at the base of Ōtuataua, part of the Auckland volcanic field. Its scoria cone reaches 64 metres above sea level.

Māori first settled in the area as early as the 14th century CE. During the Invasion of the Waikato in 1863, the local Māori had their land confiscated by the New Zealand government as punishment for supporting the Kīngitanga movement. The name Ihumātao translates as "cold nose".

The land was largely used for farming until late 2016 when the construction-management company Fletcher Building acquired the site as part of a housing-development project.