Summary A reconnaissance survey in 1949 indicates that on the beaches between the mouth of the Mokau River, 56 miles north of New Plymouth, and the township of Muriwai, 35 miles north‐west of Auckland City, there is available over 600 million tons of magnetically recoverable ironsand assaying 58% Fe. The most important deposit, that near Lake Taharoa, just south of Kawhia Harbour, ccntains some 173 million tons of ironsand in concentrations varying from 41% Fe in dune sands to 87% Fe in beach concentrates.
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Nicholson et al. (1958) studied this question.
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