El Cubo, Mexico
|Acquisition||Endeavour's third mine, acquired in July 2012|
|Location||6 kilometres southeast of the city of Guanajuato in the state of Guanajuato|
|Access||30 minutes by municipal road to the town of El Cubo|
|Property||Approximately 8,100 hectares in the second largest historic silver mining district in Mexico|
|Infrastructure||State power grid; local labour, supplies, and services|
|Operations||3 mines feed a flotation plant that produces mineral concentrates; concentrates feed a 400-tonne-per-day leach plant to produce doré bars|
|Geology||Low-sulphidation epithermal veins are typically thousands of metres long, 400 metres deep, and 1 to 3 metres thick|
- 2.3 million ounces of silver
- 28,634 ounces of gold
- 4.3 million ounces of silver equivalent
Reserves and Resources (as of December 31, 2015)
- 4.5 million ounces of proven and probable silver
- 5.0 million ounces of measured and indicated silver
- 7.3 million ounces of inferred silver
- 64,690 ounces of proven and probable gold
- 1.2 million ounces of measured and indicated gold
- 100,800 ounces of inferred gold
|YEAR||SILVER (oz)||GOLD (oz)||SILVER EQUIV. (oz)|
(1) Gold converted to silver at a 70:1 ratio
(2) Gold converted to silver at a 60:1 ratio
(3) Gold converted to silver at a 50:1 ratio
El Cubo is Endeavour’s third and potentially largest mine, located six kilometres southeast of the city of Guanajuato in the state of Guanajuato. Access is by municipal road and infrastructure includes the state power grid, and local labour, supplies and services in the city of Guanajuato. The property covers approximately 8,150 hectares in this second largest historic silver mining district in Mexico.
The El Cubo sub-district is characterized by low- sulphidation epithermal veins typically thousands of metres long, up to 400 metres deep, and ranging up to 15 metres thick. Today El Cubo comprises four underground mining operations feeding a central, 1,550 tonne-per-day plant to produce high-grade silver- gold concentrates, providing employment for 620 employees and 420 contractors.
In 2015, El Cubo produced 1.2 million ounces of silver and 18,146 ounces of gold, totaling 2.5 million ounces of silver equivalent. Silver production met guidance but gold production was below guidance due to lower than planned grades and recoveries.
Exploration drilling in 2015 totaled 11,197 metres in 47 holes to develop extensions of the V-Asunción and Santa Cecilia mines.