Pinos Altos (including Creston Mascota) had approximately 44 million tonnes of proven and probable reserves grading 2.3 grams of gold per tonne and 64.8 grams of silver per tonne, containing 3.3 million ounces of gold and 92 million ounces of silver, as of December 31, 2010.
Pinos Altos 2010 Mineral Reserves and Resources, including the Creston Mascota deposit*
|
Gold
(g/tonne) |
Silver (g/tonne) |
Tonnes
(000s) |
Gold Ounces
(000s) |
Silver Ounces (000s) |
|
Proven Reserves |
|
Open pit (stockpiles) |
0.89 |
13.26 |
1,078 |
31 |
460 |
|
Underground |
2.52 |
78.68 |
1,786 |
144 |
4,518 |
|
Total Proven Reserves |
1.90 |
54.06 |
2,864 |
175 |
4,977 |
|
Probable Reserves |
|
Open Pit |
1.98 |
45.34 |
16,987 |
1,083 |
24,761 |
|
Underground |
2.58 |
79.64 |
24,311 |
2,013 |
62,243 |
|
Total Probable Reserves |
2.33 |
65.53 |
41,298 |
3,096 |
87,004 |
|
Total Proven & Probable Reserves |
2.30 |
64.78 |
44,162 |
3,271 |
91,982 |
|
Indicated Resources |
|
|
Open Pit |
0.88 |
12.42 |
15,832 |
449 |
6,324 |
|
Underground |
1.25 |
35.76 |
9,789 |
395 |
11,253 |
|
Total Indicated Resources |
1.02 |
21.34 |
25,621 |
843 |
17,578 |
|
Inferred Resources |
|
|
Open Pit |
0.87 |
17.34 |
21,913 |
613 |
12,219 |
|
Underground |
2.38 |
59.24 |
3,744 |
286 |
7,130 |
|
Total Inferred Resources |
1.09 |
23.46 |
25,657 |
899 |
19,349 |
*Mineral reserves are not a subset of mineral resources.
Please refer to the company press release dated February 16, 2011 for further details on the mineral reserves and resources. The technical information has been prepared under the supervision of, and reviewed by, Marc Legault P.Eng., Vice-president Project Development, and a “Qualified Person” for the purposes of National Instrument 43-101. The Qualified Person responsible for the Pinos Altos mineral reserves estimate i s Dyane Duquette, P.Geo., Superintendent of Geology, Technical Services Group.