43-101 2008 Technical Report On The La Fortuna Project, Durango ...

Castillo Remaining Mineral Resource Estimate as of October 2007
Measured Indicated Meas + Ind Inferred
Cut-off Tonnes Avg Tonnes Avg Tonnes Avg Tonnes Avg
Grade Above Grade Above Grade Above Grade Above Grade
(g/t) Cut-off (g/t) Ounces Cut-off (g/t) Ounces Cut-off (g/t) Ounces Cut-off (g/t) Ounces
0.00 102,000,000 0.31 1,011,840 97,000,000 0.13 403,520 199,000,000 0.22 1,415,360 18,000,000 0.13 74,880
0.05 93,000,000 0.33 982,080 67,000,000 0.18 385,920 160,000,000 0.27 1,368,000 10,000,000 0.23 73,600
0.10 80,000,000 0.37 947,200 45,000,000 0.23 331,200 125,000,000 0.32 1,278,400 6,200,000 0.31 61,504
0.15 65,400,000 0.43 899,904 28,900,000 0.30 277,440 94,300,000 0.39 1,177,344 4,500,000 0.38 54,720
0.20 52,300,000 0.50 836,800 18,300,000 0.37 216,672 70,600,000 0.46 1,053,472 3,100,000 0.48 47,616
0.25 41,900,000 0.57 764,256 11,800,000 0.45 169,920 53,700,000 0.54 934,176 2,300,000 0.58 42,688
0.30 33,600,000 0.64 688,128 8,400,000 0.53 142,464 42,000,000 0.62 830,592 1,900,000 0.63 38,304
0.35 27,100,000 0.71 615,712 6,100,000 0.61 119,072 33,200,000 0.69 734,784 1,800,000 0.65 37,440
0.40 22,200,000 0.79 561,216 4,700,000 0.68 102,272 26,900,000 0.77 663,488 1,500,000 0.71 34,080
0.45 18,300,000 0.87 509,472 3,900,000 0.74 92,352 22,200,000 0.85 601,824 1,300,000 0.74 30,784
0.50 15,200,000 0.95 462,080 3,200,000 0.79 80,896 18,400,000 0.92 542,976 1,000,000 0.83 26,560
0.60 11,000,000 1.11 390,720 2,300,000 0.89 65,504 13,300,000 1.07 456,224 840,000 0.88 23,654
0.70 8,180,000 1.26 329,818 1,650,000 0.98 51,744 9,830,000 1.21 381,562 640,000 0.95 19,456
0.80 6,270,000 1.42 284,909 1,150,000 1.09 40,112 7,420,000 1.37 325,021 580,000 0.97 18,003
0.90 4,980,000 1.56 248,602 630,000 1.29 26,006 5,610,000 1.53 274,608 560,000 0.98 17,562
1.00 4,040,000 1.71 221,069 490,000 1.39 21,795 4,530,000 1.67 242,864 220,000 1.07 7,533
* Blocks under 0.15 g/tonne are not considered to be "Resources" and are included for information purposes only.
Notes:
• Base case is 0.15g/tonne Au;
• Metal price used US$625/oz Au;
• Assumed metal recovery based on previous metallurgical studies is 68%
• Not all tonnage will be recovered in mining, nor will all metal be recovered in milling and processing
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