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

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• Castle Gold should complete geotechnical evaluations to determine if a steeper pit wall angle can be utilized for mine design purposes (in order to reduce mine strip ratios) • Castle Gold should purchase and install a weight station in order to better control the amounts hauled and the costs incurred by mine contractors • Castle Gold should continue to focus on opportunities to optimize the overall project economics. These activities should include: • Completion of plans to install a screening plant ahead of the crushing system in order to minimize the amount of material passing through the crushers • Performing leach tests on numerous ore samples to better understand the variations in recoveries by rock/mineral types and optimal reagent additions; • Completing engineering evaluations of various project expansion scenarios in order to determine best combinations of capital costs and overall project cash flows; • Examining opportunities to “right size” present mining operations equipment fleet for maximum throughput and minimum operating costs; • Evaluating possibility for use of ore transport conveyors versus trucking activities; • Assessing alternate future leach pad locations with respect to minimizing ore haulage distances. 64
18.0 SOURCES OF INFORMATION A. C. A. Howe International Limited (2002), Prefeasibility Report, El Cairo Gold Project, State of Durango, Mexico, for Castle Gold Minerals Limited, Toronto, Canada; Howe Report 845, available for public viewing on the TSX Sedar Filing website at http://www.sedar.com/. A. C. A. Howe International Limited (2003), Revised Prefeasibility Report, El Cairo Gold Project, State of Durango, Mexico, for Castle Gold Minerals Limited, Toronto, Canada; Howe Report 850, available for public viewing on the TSX Sedar Filing website at http://www.sedar.com/. A. C. A. Howe International Limited (2004), Technical Report on the 2003 Diamond Drill Program, El Cairo Gold Project, State of Durango, Mexico, for Castle Gold Minerals Limited, Toronto, Canada; Howe Report 861, 59 p. A. C. A. Howe International Limited (2006), Pre-Feasibility Report El Castillo Project, Durango, Mexico, for Castle Gold Minerals Limited, Toronto, Canada; Howe Report 897, 143 p Analytical Solutions Ltd, 2004, A Comparison of Reverse Circulation and Diamond Drill Core Assays for the El Cairo Project, Durango, Mexico prepared on behalf of Castle Gold Minerals Inc., 12 p. Babcock, C., 2006, Letter of sale release to Metals Research Corporation on March 6, 2006. Canadian Institute of Mining, Metallurgy and Petroleum, 2000, CIM Standards on Mineral Resources and Reserves, Definitions and Guidelines, 18 p. Cook D. R. and Simmons S. F., 2000, Characteristics and Genesis of Epithermal Gold Deposits: Society of Economic Geologists, Reviews in Economic Geology, v. 13, p.221-244. Consejo de Recursos Minerals, 1993. Monografia geologico-minera del estado de Durango 204p. Cormier, A., 1998, Metallurgical Summary of El Cairo Tests: in-house report for Battle Mountain Gold, 8p. Iasillo, E., 2006, Letter Report to Castle Gold Minerals on Gold Recovery of Heaps 1 and 2: Metcon Research. Kappes, Cassiday and Associates, 2002, EL Cairo, Mexico, Project Review and Recommendations: Report prepared on behalf of A.C.A. Howe International Limited, Kappes, Cassiday & Associates, August 5, 2002, 10 p. Kappes, Cassiday and Associates, 2006a, Drill core leach test – interim data from Kappes, Cassiday & Associates. Kappes, Cassiday and Associates, 2006b, Bottle roll leach tests, a letter report from Kappes, Cassiday & Associates dated March, 24, 2006 (author: Manning, T.). Koningen, D. 2006, Castillo Metallurgical Review: in-house report for Castle Gold Minerals Inc., 21p. Long, S. D. 1998. Practical Quality Control Procedures in Mineral Inventory Estimation: Exploration Mining Geology, Vol. 7, Nos. 1 and 2, pp. 117-127. Minera Real del Oro, 2006, Sample Preparation Procedure for Column Tests: Summary Report by Mineral Real Del Oro staff. Northern Front LLC, 2006, Letter dated March 23, 2006 to Chris Babcock, President of Mineral Real Del Oro, S.A. de C.V. 65
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 and 42: Morgain Minerals Inc. El Cairo Gold
Page 43 and 44: 13.0 MINERAL PROCESSING AND METALLU
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 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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43-101 2008 Technical Report On The La Fortuna Project, Durango ...

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