Tundra Airborne Surveys Ltd. (TAS) was incorporated in early 2004 to provide the mineral exploration community with an alternative source for quality aeromagnetic surveys. TAS offers fixed-wing magnetic surveys in single sensor and horizontal gradiometer configurations. Survey aircraft are configured with dual extended wing tip pods and extended tail stingers. Since incorporation TAS has flown and compiled over 400,000 km. of high-resolution horizontal gradient surveys in the various diamond districts of Canada. We also offer radiometrics and VLF-EM along with the magnetic surveying using a full spectrum Pico Envirotec GRS-10 spectrometer and a Totem-2A VLF receiver. Since 2006 TAS has flown and complied 77,000 km of combined horizonatl magnetic gradient, radiometrics, and VLF-EM in the Thelon Basins, Northern Saskatchewan and Northern Quebec. In 2011 TAS entered into a partnership agreement with Scott Hogg & Associates of Toronto whereby TAS operates SHA’s Heli-GT tri-axial helicopter gradiometer system and SHA continues to do the processing and interpretation. In the first year of the partnership TAS flew a total of 42,000 line kilometers of Heli-GT survey in various parts of Northern Ontario.