The Geological Map of New Zealand 1:250,000 Sheet 25 Dunedin (1st Edition) is **a historic scientific chart published by the Department of Scientific and Industrial Research (DSIR) and compiled by the New Zealand Geological Survey. [1]
Originally issued as part of a 28-sheet nationwide series between 1959 and 1973, this map was reviewed and detailed around 1967. It represents the foundational large-scale regional geological mapping of the Dunedin and broader Otago coastal environment.
