Summary

Mine Type	Open Pit
Study Completed	Preliminary Economic Assessment
	Archived Information
Commodities	Gold Silver
Mining Method	Truck & Shovel / Loader
Mine Life	...
Snapshot	Santa Gertrudis is an advanced exploration stage Project. Agnico Eagle acquired its 100% interest in the Santa Gertrudis gold property in November 2017 and does not recognize the results of PEA 2014. The Santa Gertrudis property was the site of an historic heap leach operation that produced approximately 565,000 ounces of gold at a grade of 2.1 g/t gold from 1991 to 2000. Substantial surface infrastructure is already in place on the property including pre-stripped pits, haul roads, water sources and buildings. The Company is currently evaluating a potential production scenario at Santa Gertrudis that utilizes a heap leach for lower-grade mineralization and a small mill facility to process higher-grade ore. The Company believes that the Santa Gertrudis project has the potential to be a similar size operation to La India. In 2023 on the Santa Gertrudis were exploration activities.

Deposit type

• Carlin-type
• Stratabound
• Replacement

Summary:

Historic production for the Santa Teresa mining district was principally from sedimentary-rockhosted gold deposits that have been characterized by some authorities as “Carlin-type” in character.

Northern Sonora has three northwest-trending mineralization corridors, which each have distinctive regional geological features. Santa Gertrudis covers a potential strike length of 25 km of the favourable Cretaceous-age intra-caldera sedimentary belt.

Three corridors with favourable geological formations have been identified on the property, with a potential strike length of 18 km. Within the corridors there are nine mineralized zones with multiple deposits; the mineralized deposits form trends that are hosted mainly by units within the sedimentary Morita, Mural and Cintura formations. Limited drilling has been completed between the deposits.

There appear to be three types of gold-silver mineralization (oxide, transitional and sulphide) at Santa Gertrudis. There is stratabound replacement mineralization in calcareous siltstone or on the margins of limestone. In addition, the Company's prospecting has identified high-grade mineralization along northeast-striking fractures that crosscut the stratigraphy and that appear to be important mineralization conduits.

Amelia is one of three deposits that comprise the Trinidad Trend and is the site of a previously operating open-pit gold mine. High-grade gold mineralization can be found in multiple parallel structures that commonly correspond to lithological contacts. The Amelia deposit strikes east-west for a length of approximately 900 metres and dips steeply to the north. Most of the open pit (oxide) material lies between surface and 140 metres depth, while the underground mineral resource below the open-pit mineral resource has been extended to a depth of approximately 700 metres.

The Espiritu Santo zone, discovered in 2019 at a location 500 metres east-southeast of Amelia, includes high-grade gold and silver mineralized structures at shallow depth.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Commodity Production

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Apr 20, 2024
.......................	.......................		Apr 16, 2024