Bell, J.M.; Fraser, C. 1906 The geology of the Hokitika sheet, north Westland quadrangle : with which has been included a small portion of the upper Wilberforce Valley, in the Waimakariri quadrangle. Wellington: Government Printer. New Zealand Geological Survey bulletin 1 101 p.
Abstract: The Hokitika sheet, which consists of the survey districts of Mahinapua, Kanieri, Turiwhate, and Browning’s Pass, is the division described in this bulletin, and with it has also been included a small triangular section of the country situated at the head of the Wilberforce River and adjoining Browning’s Pass. In all this bulletin covers and area of about five hundred square miles, and embraces a section from the shore of the Tasman Sea near the mouth of the Hokitika River, eastward to the main crest of the Alps, and across that physical feature down the valley of the Wilberforce to the mouth of the Stewart or Unknown River. (auth/DG)