The Lindero Project contains two known porphyry gold-copper deposits. The Lindero Deposit is the focus of the Feasibility Study and the Lindero Technical Report; whereas the Arizaro Deposit, located 3.2 km southeast of the Lindero Deposit, is described only in terms of exploration conducted to date.

In the Central Andes, the altiplano or puna is a high plateau of more subdued relief between the Eastern Cordillera, a rugged region usually rising to between 3 km and 4.5 km, and the Western Cordillera, which is a high spine of mountains that may reach as much as 5 km in height. The Arizaro Volcanic Complex consists of two superimposed concentric volcanic centers, the Arizaro and the Lindero cones, located in the Archibarca volcanic arc at the southern margin of the Salar de Arizaro basin. Basement rocks crop out to the north of the Lindero Deposit, and consist of coarse- grained Ordovician granites uncomformably overlain by Early Tertiary red bed sandstones. The Lindero– Arizaro complex, a series of diorite to monzonite porphyritic stocks, intrudes these units.

Mineralized zones at the Lindero Deposit form a semi-circular shape about 600 m in diameter which extends to a depth of 600 m, consisting of four different zones at the surface. The distribution of gold–copper mineralization at Lindero shows a strong relationship to lithology, stockwork veinlets, and alteration assemblages. Gold values average 0.70 g/t Au and copper values are typically about 0.11 % ........

Mining Methods
The Lindero Deposit is suitable for open pit mining methods. Gold grade distribution and the results of the mineral processing testing indicate that ore from Lindero can be processed by conventional heap leaching methods.

The Lindero Project has been planned as an open pit truck and wheel loader operation. The truck and wheel loader method provide reasonable cost benefits and selectivity for this type of deposit. Only open pit mining methods are considered for mining at Lindero.

Pit designs
Detailed pit design was completed, including an ultimate pit and five internal phased pits. The ultimate pit was designed to allow mining of mill feed material identified by NPVS optimization while providing safe access for people and equipment. Internal pits or phases within the ultimate pits were designed to enhance the Project economics by providing higher-value material to the leach pad earlier in the mine life

Bench height
Pit designs were developed based on 8 m benches for mining. This corresponds to the resource model block heights, and Fortuna believes this to be reasonable with respect to dilution and equipment anticipated to be used in mining.

Feb. 20, 2019
All mine equipment required for the start of operations has arrived and has been assembled on site including; six 100 ton trucks, two 17 cubic yard wheel loaders, one 5 cubic yard crawler excavator, two 449 HP dozers, two 250 HP motor ........

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