Purchas Hill (also Te Tauoma) is one of the volcanoes in the Auckland volcanic field.

Purchas Hill was a twin-cratered scoria cone around 50 metres high, located north of Maungarei / Mount Wellington, before it was predominantly quarried away.

The scoria cone sat in the middle of its large explosion crater with a surrounding tuff ring.

[2] In the mid 1800s, geologist Ferdinand von Hochstetter named the mountain after the Reverend Dr Arthur Guyon Purchas (1821-1906), in gratitude for his help with geological work on the field.

[1] The scant remnants of Purchas Hill lie on what is largely a wasteland in the suburb of Stonefields in Auckland.