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

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12.0 ADJACENT PROPERTIES There are no adjacent properties of interest. 32
13.0 MINERAL PROCESSING AND METALLURGICAL TESTING 13.1 INTRODUCTION Several metallurgical tests on mineralized oxidized material from the Property have been completed, both by Castle Gold and by independent groups between 2004 and 2006. The tests were designed to determine the leaching characteristics of the oxidized material and consisted of: • Bottle roll leach tests in 2004 and later column leach tests in 2006 by Kappes, Cassiday and Associates (“KCA”); • Two onsite bulk heap leach tests conducted by Castle Gold in 2005, followed by a residual analysis of the heaps conducted by Metcon Research (“Metcon”) in 2006. The data from the various tests have been reviewed and vetted by, D. Koningen, P.Eng, acting in the capacity of Castle Gold’s internal Qualified Person (“QP”) in matters of process engineering and metallurgy. Mr. Koningen is also a Director of Castle Gold. Much of the information presented in this section is taken from Mr. Koningen’s 2006 summary review of the metallurgical test work completed to date on the Property (Koningen, 2006; in Appendix A). 13.2 2004 KCA BOTTLE ROLL TESTS In early December 2003, 15 boxes of core samples from the El Castillo Project were shipped to KCA for cyanide bottle roll tests. All samples were split and pulverized to
Page 1 and 2: TECHNICAL REPORT ON THE EL CASTILLO
Page 3 and 4: SUMMARY Introduction At the request
Page 5 and 6: Castillo Remaining Mineral Resource
Page 7 and 8: Undiluted Reserves at $550 per Ounc
Page 9 and 10: epresent an incremental increase in
Page 11 and 12: TABLE OF CONTENTS 1.0 INTRODUCTION
Page 13 and 14: Table 4. Driving distances from Dur
Page 15 and 16: Castle Gold has accepted that the q
Page 17 and 18: 2.0 PROPERTY DESCRIPTION, LOCATION,
Page 19 and 20: Figure 2. Map showing mining conces
Page 21 and 22: 2.1.2.3 Property Taxes The property
Page 23 and 24: Table 5. Maximum precipitation in a
Page 25 and 26: 3.0 HISTORY The El Castillo Project
Page 27 and 28: commonly reach elevations of 2,500
Page 29 and 30: Figure 4. Cross-section through the
Page 31 and 32: At El Castillo, the presence of cha
Page 33 and 34: Toward the center of the mineralize
Page 35 and 36: 7.0 EXPLORATION In 2006, Castle Gol
Page 37 and 38: 9.0 SAMPLING METHOD AND APPROACH Th
Page 39 and 40: 11.0 DATA VERIFICATION 11.1 INTRODU
Page 41: Morgain Minerals Inc. El Cairo Gold
Page 45 and 46: Table 9. Castle Gold test heap leac
Page 47 and 48: material is relatively consistent a
Page 49 and 50: Plate 6. View of the El Castillo si
Page 51 and 52: 14.2.1 Methods A shift of -500,000
Page 53 and 54: 14.2.4 Pit Optimization Parameters
Page 55 and 56: Undiluted Reserves at $600 per Ounc
Page 57 and 58: Table 13. Comparison of Howe 2003 a
Page 59 and 60: 15.2.2 Change of Land Use The Compa
Page 61 and 62: 16.2.1 Capital and Operating Cost E
Page 63 and 64: Table 15. Operating Cost Summary (U
Page 65 and 66: will be operating the mine indirect
Page 67: Table 17. Sensitivity Analysis - Gr
Page 70 and 71: 16.2.2 Economic Evaluation The Base
Page 72 and 73: Table 23. US$ - Mexican Peso Exchan
Page 74 and 75: • Castle Gold should complete geo
Page 76 and 77: Panteleyev, A., 1996, Epithermal Au
Page 78 and 79: 9. To the best of my knowledge, inf
Page 80 and 81: CERTIFICATE OF AUTHOR dated July 31
Page 82 and 83: Appendix A Pit Optimization Level P

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