Mexico’s Best Drilling Intercepts, Third Week of July 2026

Two companies announced results from diamond drilling campaigns in Mexico during the week. The third company included in the table below published results past week that were not included in the respective weekly compilation

Torex Gold presented results from drilling at its Morelos Complex in Guerrero. The company’s 2026 program includes 62,500 m of drilling for the Media Luna Cluster focusing on growing resources and offsetting depletion, with a further 36,000 m targeting ELG Underground to offset depletion, grow mineral reserves, and expand resources within the main mineralized trends. “The Media Luna Cluster and ELG Underground are located within the Morelos Complex, both of which are hosted within the Mesozoic carbonate-rich Morelos Platform, overlayed by Cuautla and Mezcala formations and have been intruded by Paleocene stocks, sills, and dikes of granodioritic to tonalitic composition…. The mineral assemblage is characterized by pyroxene, garnet, and magnetite. Metal deposition occurred during hydrated minerals alteration and is associated with a mineral assemblage comprising of amphibole, phlogopite, chlorite, and calcite ± quartz ± epidote as well as variable amounts of magnetite and sulfides, primarily pyrrhotite”. Gold occurs as free gold and was deposited after the chalcopyrite bearing calc-silicate alteration.

Advance Metals provided an update on drilling progress at the Gavilanes project in Durango. “The latest results provide further evidence that Gavilanes may represent a multi-stage telescoped mineralising system with geological similarities to the nearby San Dimas district. At San Dimas, mineralisation is interpreted to reflect several superimposed events, including an early Cretaceous copper-gold porphyry event overprinted by later silver-dominant and then gold-dominant epithermal vein systems”. The project presents mineralization with intermediate sulfidation epithermal characteristics.

Minaurum Silver reported las week results from drilling on the Europa, Quintera, Travesía, and San José vein zones at its Alamos Silver project in Sonora. The drilling is part of the Phase II 50,000 m resource expansion program at the site. The Alamos Silver project displays Intermediate sulfidation epithermal mineralization.  

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Mexico’s Best Lead and Zinc Drilling Intercepts, Second Quarter 2026

Thirteen companies released lead and/or zinc results from fourteen drilling programs in Mexico during the second quarter of 2026. The best results for both lead and zinc come from a volcanogenic massive sulfides (VMS) deposit: Luca Mining’s Campo Morado mine in Guerrero, with a core length interval of 100.70 m averaging 0.7% Pb, 2.6% Zn.

Eight of the twelve properties present intermediate sulfidation epithermal mineralization, including Copalito, Tahuehueto, Zacatecas Silver, San Marcial-Plomosas, Zacualpan, Cruz de Plata, Gavilanes and Alamos Silver. Gran Pilar also displays intermediate sulfidation epithermal mineralization, probably distal to a porphyry copper system. The Claudia project in Durango presents mainly low sulfidation epithermal mineralization, but the intervals here included represent some intermediate sulfidation mineralization. Cerro Las Minitas, Cosalá and La Parrilla can be described as skarn and carbonate replacement systems, the latter presenting also intermediate sulfidation mineralization.

To note is that eleven of the fourteen properties with reported lead-zinc intercepts are localized in only three adjacent states: Sonora, Sinaloa and Durango.

Mexico’s Best Copper Drilling Intercepts, Second Quarter 2026

Nine companies released copper results from ten drilling programs in Mexico during the second quarter of 2026. The best copper intercept is, as in the first quarter, from Luca Mining’s drilling at Campo Morado in Guerrero, with 118.2 m averaging 0.76% Cu. The underground diamond drilling results are from the Largo Norte Zone, which “… is a large, 650m long, consistent mineralized VMS body that dips shallowly to the south and ranges from 20 to 60 meters in thickness”.

Intermediate sulfidation epithermal systems represent 50% of the reported copper result, although all in the bottom half of the table. Alamos Silver, Tahuehueto, Zacualpan, Gavilanes and Gran Pilar (this one as a distal part of a porphyry copper system) fall into this category. Santo Tomás is the only porphyry copper deposit with published results, Dios Padre is a strongly zoned Au-Cu-Ag breccia related to a porphyry copper system whereas Adelita can be defined as a skarn distal to a porphyry copper system. Cosalá presents skarn and carbonate replacement (CRD) mineralization.

Looking at a table like this one it is no apparent that over 80% of the copper produced in Mexico comes from porphyry copper deposits, with the bulk of it originating on the Buenavista del Cobre and La Caridad mines in Sonora.