Sienna Gold Inc. announced results from the latest drill holes at Callanquitas on the Igor project, La Libertad, Peru. The five drill holes totaled 1,637.1 meters (m) and were designed to test the main part of the Callanquitas Structure and its possible extension to the south. All drill holes intersected mineralization at the predicted depths. Hole CA-11-13 returned the best results, with 10.15 m at an average grade of 0.994 grams per tonne (g/t) gold and 434.9 g/t silver. This included 3.5 m with 2.541 g/t gold and 1,221.2 g/t silver. The highest sample was from this interval and was 1.15 m with 4.227 g/t gold and 2,119 g/t silver. The Callanquitas Structure is proving robust and predictable. Two points should be emphasized. Firstly, drilling and surface sampling demonstrate high grades and continuity both laterally (greater than 900 m) and over a considerable elevation difference (greater than 400 m). Secondly, company have started to identify higher grade oreshoots with exceptional silver grades; these may well be the eventual 'mine-makers'. The 10,000 m drill program is designed to help define a resource by the end of third quarter of 2012. It will be modified accordingly if more oreshoots are identified. This would quickly add ounces. Two rigs are currently drilling. To date they have drilled a total of 3,300 m. A third drill rig will arrive in mid to late February to help complete approximately 10,000 m of drilling at Callanquitas and allow definition of a NI 43-101 compliant resource by the end of third quarter of 2012. Cores taken from the diamond drill rig are stored in plastic core boxes and transported to the camp for detailed logging. Afterwards, the core is cut on site with a diamond saw. The samples are analysed by SGS Laboratories in Lima by inductively coupled plasma atomic emission spectroscopy for silver and 37 other elements (included Hg and Te) and a 30 gram fire assay technique for gold. Samples above detection limits are re-assayed using a gravimetric fire assay. The specific lab procedures can be found in the company's 43-101 report on the Igor property.