Recommended reading: Dearman, W.R. (1991). Engineering Geological Mapping. Butterworth-Heinemann, 387p. Hoek, E. and Bray, J. (1981). Rock Slope Engineering. Institution of Mining and Metallurgy, 358p. Turner, A.K. and Schuster, R.L. (1996). Landslides: investigation and mitigation. National Academy Press, 673p. West, G. (1991). The field description of engineering soils and rocks. Open University Press, 129p. Wyllie, D.C and Mah, C.W. (2004). Rock slope engineering civil and mining (4th edition). Spon Press, 431p. Tejakusuma, I.G. (1998). Slope movement and faulting in Quaternary deposits and Miocene weak rock at Beachlands, Auckland, New Zealand. Thesis (MSc-Geology), University of Auckland. Cocks, G. (1993). Engineering & Quaternary geology, and seismotectonic of the Hunua Valley fault-angle depression, Wairoa North Fault, south-east Auckland, New Zealand. Thesis (MSc-Geology), University of Auckland. Wise, D.J. (1999). A geophysical and geotechnical study of the Wairoa North Fault, South Auckland. Thesis (MSc-Geology), University of Auckland.