In 2003, Yorbeau excavated two trenches on the Astoria Block to expose on surface some of the carbonate rocks believed to have open pit potential. Bulk sampling was then done in 2004 to test the open-pit potential of the B carbonate zone. Shown in the table below, the results indicated two gold-bearing zones with economic potential.
| Bulk Sample # |
Location | Area Sampled | Volume (tonnes) | Grade g/t Au |
| AST-1 | Trench No. 1 | 8 m x 15 m | 1,860 | 2.0 |
| AST-2 | Trench No. 2 | 8 m x 7 m | 700 | 2.2 |
Note: Above lengths are measured along strike, or along an east-west direction.
In January 2005, P&E Mining Consultants Inc. prepared a resource estimate for the Astoria Block that showed an undiluted open pit measured and indicated resource of 770,000 tonnes grading 2.57 grams of gold per tonne and an underground measured and indicated resource of 1,970,000 tonnes grading 4.51 g/t Au, for a total of 349,100 ounces of gold. Undiluted inferred resources amenable to open pit and underground mining totalled 14,000 tonnes grading 2.29 g/t Au and 385,000 tonnes grading 4.83 g/t Au respectively, for another 60,800 ounces of gold.
Eugene J. Puritch, P.Eng., P & E Mining Consultants Inc. - Open Pit and Underground Mineral Resource Estimate for the Astoria 1 Gold Project, Near Rouyn, Quebec - Amended Report - October 3, 2005 - NI 43-101 Compliant. PDF file 5,500K
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