Onepoto

[volcanic crater] Onepoto is the name of a volcanic explosion crater (or maar) in North Shore City, New Zealand. It is a part of the Auckland volcanic field. Located near the approaches to the Auckland Harbour Bridge, it was created by a series of eruptions approximately 250,000 years ago. The crater first became a freshwater lake, and late...
Found on http://en.wikipedia.org/wiki/Onepoto_(volcanic_crater)
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