New Zealand Map Series 1:
S20 5-- 0-- (WGS84 -41.475272 173.196927)
New Zealand Map Series 260:
N28 219 655 (WGS84 -41.517284 173.142704)
Latitude and Longitude (WGS84):
41°31´ S 173°8.6´ E (WGS84 -41.516667 173.143333)
Notes:
Herbarium of F.G. Gibbs. "Poison - mercuric chloride".