Coleman, A.C.; Johnston, M.R. 1975 Northern Buller power scheme: proposed damsites (M1, M2), Mokihinui River (S25). Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 214 12 p.
Abstract: Since a preliminary report (EG179) on the geology of the Mokihinui River was written, in November 1973, Ministry of Works and Development have more closely defined the sites (M1 - Howarth and M2 - Russell Crosses) of possible dams. An access road has been constructed to the sites and at each site lines have been cut and detailed maps prepared. At the upstream (M2) site the abundant lines are to be cleanse down to fresh rock and exploratory drilling and the construction of drives is to be carried out. This report presents more fully the information obtained in November 1973 and in subsequent visits in July and December 1974. (auth)