Seabridge Gold's Mitchell Deposit Expands in Three Directions

Seabridge Gold Inc. (TSX VENTURE: SEA)(AMEX: SA) -

Assay results from the first eight holes drilled this summer at the Mitchell zone have confirmed northern, southern and depth extensions of the deposit. Mitchell is one of three gold-copper porphyry deposits located on Seabridge's 100% owned Kerr-Sulphurets project near Stewart, British Columbia, Canada.

In June, Seabridge commenced a 15,000 meter core program at Mitchell designed to upgrade the existing inferred resource and to test for extensions of the deposit (see news release dated June 27, 2007). To date, results have been received and analyzed for the first eight holes of the 2007 program with assays reported as follows:

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Drill             Depth       From          To    Intercept   Gold  Copper
Hole       Target    (m)        (m)         (m)          (m)  (gpt)     (%)
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M-07-24     Depth 597.3      356.8       597.3        240.5   0.83    0.25
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M-07-25 Depth and 478.6        9.0       478.6        469.6   0.83    0.26
         Northern
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M-07-26    Infill 472.7        0.0       472.7        472.7   0.79    0.19
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M-07-27  Southern 356.0      180.4       223.0         42.6   0.73    0.18
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M-07-28  Southern 398.4        5.2       398.4        393.2   0.59    0.14
                         incl. 5.2       213.1        207.9   0.86    0.18
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M-07-29  Southern 336.5        6.7       336.5        329.8   0.75    0.19
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M-07-30  Southern 194.5                 Did not reach target
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M-07-31  Southern 233.2       58.0       233.2        175.2   0.68    0.20
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Drill hole M-07-24 was a deepening of 2006 drill hole M-06-24 which yielded continuous mineralization of 256.8 meters averaging 0.66 grams per tonne gold and 0.19% copper commencing at 100.0 meters to the bottom of the hole which terminated at 356.8 meters. Results from M-07-24 confirm the potential for at least a 200 meter depth extension of the Mitchell deposit with the hole still ending in typical Mitchell grades. The hole was terminated in mineralization as the drill's maximum capacity had been reached.

Holes M-07-25 and M-07-26 demonstrate the remarkable consistency of mineralization and continuity of grades in the down-dip direction to the north. Both holes terminated in mineralization.

Drill holes M-07-27 and M-07-31 were collared above the Mitchell thrust fault. The Mitchell zone was intercepted immediately below the thrust fault at 180.4 meters and 58.0 meters respectively.

Drill hole M-07-30 was also collared above the Mitchell thrust fault but was abandoned in rocks above the thrust fault prior to reaching its target due to hole conditions. Note that the entire 194.5 meters drilled above the target zone were hydrothermally altered and averaged 0.31 grams of gold per tonne and 0.08% copper, demonstrating that rocks above the fault are still contained within the mineralizing system.

Drill hole M-07-27 is believed to be approaching the southeastern limit of the Mitchell zone as mineralization is thinning in this direction.

Based on drilling conducted by Seabridge in 2006, a National Instrument 43-101 compliant resource estimate for Mitchell yielded an initial inferred resource of 564 million tonnes grading 0.72 grams per tonne gold (13.1 million ounces) and 0.18% copper (2.23 billion pounds) at an equivalent gold cut-off grade of 0.50 grams per tonne gold (see news release dated February 20, 2007). Equivalent grades were determined using a gold price of US$475 per ounce and a copper price of US$1.50 per pound. The 2006 drill program did not find the limits of the deposit which remained open to the north, to the south (toward the Sulphurets deposit a distance of two kilometers), to the west and at depth.

All of the reported holes contained herein were drilled from north to south at an incline of approximately minus 60 degrees. The true thickness of the Mitchell zone, based on initial drill results from the current program, is estimated to be 500 to 600 meters but could be more as the deepest hole drilled to date (M-07-24) ended in material that was consistent with the grades of the overall hole.

Seabridge President and CEO Rudi Fronk noted that "the 24 holes drilled at Mitchell during 2006 confirmed a continuously mineralized gold-copper deposit measuring 1,600 meters long, 800 meters wide and at least 300 to 400 meters thick. The new drilling to date suggests that we may have added at least 200 meters of thickness and 400 meters of width due to extensions to the south and north. We anticipate further extensions from this year's program, particularly to the south."