Mount Hobson is a 143 m high volcanic cone in the Auckland Volcanic Field

Auckland Volcanic Field

The Auckland volcanic field is a monogenetic volcanic field in the North Island of New Zealand. Basaltic in nature, it underlies much of the metropolitan area of Auckland....

 in Auckland

Auckland

The Auckland metropolitan area , in the North Island of New Zealand, is the largest and most populous urban area in the country with residents, percent of the country's population. Auckland also has the largest Polynesian population of any city in the world...

, New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

.

Located in the Remuera

Remuera

Remuera is a residential suburban area within Auckland city, in the North Island of New Zealand. It is located four kilometres to the southeast of the city centre...

 suburb, to the east of the Newmarket

Newmarket, New Zealand

Newmarket is an Auckland suburb to the south-east of the central business district. With its high building density, especially of retail shops, it is considered New Zealand's premier retailing area, and a rival of local competitor Auckland CBD...

 commercial suburb, it has been extensively modified by human use, first by Māori use as a Pā (fortification)

Pa (Maori)

The word pā can refer to any Māori village or settlement, but in traditional use it referred to hillforts fortified with palisades and defensive terraces and also to fortified villages. They first came into being about 1450. They are located mainly in the North Island north of lake Taupo...

 and later by being used as a quarry, pasture land and having its top transformed into a water reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

for the surrounding area.