Mangere Lagoon

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Mangere Lagoon is a volcanic crater and now a lagoon in the Manukau Harbour, New Zealand, and is part of the Auckland volcanic field. Half-oval and about 600m long, it has a small scoria island remaining in the centre with a horeshoe crater opening to the southwest.[1]

In the 1930s, efforts were made to drain the swamp for conversion to pasture, while in the late 1960s, earthworks for sewage sludge ponds in the lagoon damaged the scoria cone and the crater.[1] However, public demands for a better system eventually led to a land-based facility, and in 2003, the restoration of the area as a tidal lagoon was completed, with the sludge removed and carted to landfills. The scoria cone was rebuilt as an artificial bird roost.[2]

[edit] References

  1. ^ a b Mangere Lagoon - City of Fire, insert magazine in the The New Zealand Herald, Friday 15 February 2008
  2. ^ Redemption near for Puketutu - City of Fire, insert magazine in the The New Zealand Herald, Friday 15 February 2008
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