VANCOUVER, BRITISH COLUMBIA--(MARKET WIRE)--Feb 18, 2009 -- MAG Silver Corp. (Toronto:MAG.TO - News)(AMEX:MVG - News) ("MAG") reports on behalf of Minera Juanicipio SA, a 56/44 joint venture between Fresnillo plc and MAG, assay results from preliminary exploration drilling along the Juanicipio Vein located almost 1,000 metres south of the Valdecanas Vein. The two holes reported here were started in late 2008 and completed in January, 2009. Both holes successfully intercepted the Juanicipio Vein.

The Juanicipio Vein has now been intercepted in four holes westward along a 600 metre strike length from the first intersection of the vein in Hole JU1 and remains open in all directions. The best result from this latest drilling is a high grade gold and silver intercept recorded in Hole 20P which returned 4.95 grams per tonne (g/t) gold, 115 g/t (3.4 ounces per ton (opt)) silver, 1.19% lead and 2.89% zinc over a width of 1.20 metres (0.92 metres true width). The high gold value is characteristic of veins in the new emerging Fresnillo II district which typically have much higher gold grades than veins in the historic Fresnillo district.

This intersection is located 500 metres west along strike and 100 metres deeper than Hole 18P reported in an earlier press release. The second hole 18Q2 returned 55 g/t (1.6 opt) silver, 0.27 g/t gold, 1.54% lead and 2.00% zinc over 0.85 metres (true width). The intercept in Hole 18Q2 is located 55 metres west and 95 metres deeper than the intercept reported in Hole 18P (0.6 metres of 4,100 g/t silver and 1.4 g/t gold, see also Press Releases of August 14, 2003 and April 16, 2008).