ZTEM (Z-Axis Tipper Electromagnetic) surveys were conducted, on behalf of Geoscience BC (Project 2008-32), over the Mt. Milligan Property, belonging to Terrane Metals Corp. (Vancouver, BC) and situated in the Mackenzie region of central British-Columbia (Figure 1a), between October 15TH to 22ND, 2008. The ZTEM survey comprised airborne Tipper AFMAG (audio frequency electromagnetics) measurements, as well as aeromagnetics using a caesium magnetometer. The survey consisted of twenty five (25) approx. 8.0 km long, EW oriented flight lines, totaling 200 line-km, that were obtained at nominal 250m line spacings over an approximately 6 x 8 km area .