Three companies released results from drilling projects in Mexico during the week, notably, the three projects are in Sonora.
Sonoro Gold announced assay results from 26 reverse circulation drill holes at its Cerro Caliche property in Sonora, having completed 72 holes over 14,086 m as part of an ongoing 50,000-m campaign. The results are from the recently acquired Diana concessions and the newly-identified La Colorada zone. The higher-grade results from the Diana zone are likely to improve the overall economics of the project, whereas at La Colorada zone “Drilling outlined a new northwest-trending mineralized zone characterized by rhyolitic dikes, structurally controlled breccias, multiple mineralized structures and numerous historical mine workings.”
Tocvan Ventures reported assays results from one additional hole at its Gran Pilar project in Sonora. The hole was collared 130 m from a previous successful hole on the El Mezquite trend, which now has been traced for 1,400 m. “Mineralization remains associated with silicified hydrothermal breccia, pyrite, tourmaline, and increasing Zn-Pb-As pathfinders.” From information on previous news releases, the project presents characteristics of an intermediate sulfidation epithermal system, probably distal to a porphyry copper system.
Masivo Silver reported analytical results from the first drill hole completed at its Cerro Colorado project in Sonora. The company reported the “broad width of mineralization, strong alteration, persistent polymetallic signature and strengthening grades near the bottom of the hole”, same that was terminated due to technical difficulties. Cerro Colorado displays characteristics of intermediate sulfidation epithermal mineralization over imposed on a porphyry copper system.
Six companies released results from drilling projects in Mexico during the week.
Torex Gold Resources reported results from drilling at its Morelos property in Guerrero, which encompasses the Limón-Guajes and Media Luna mines, as well as the Media Luna North, Media Luna West, Media Luna East, EPO and ELG Underground deposits, and the San Miguel Corridor target. Impressive gold, silver and copper grades in long intervals from the San Miguel Corridor, Media Luna mine, Media Luna North, Media Luna East and from ELG Underground were announced. The present press release also incorporates information on the regional exploration plays, same that sound really interesting. For a more detailed description of the geology of this skarn related ore deposit, please read the press release.
Southern Silver Exploration reported assays from five definition holes on the Puro Corazón target at its Cerro Las Minitas property in Durango. “These initial results are from the ongoing 14,000 metre core hole drill program that was started in June ’26 and is designed to upgrade resource classification in the Puro Corazon target. The current drill program will test an area that is roughly a 200 metres strike-length by 300 metres down dip within the Puro Corazon claim.” Mineralization present at Cerro Las Minitas is of carbonate replacement deposits (CRD) and skarn deposit styles.
Kootenay Silver announced assays results from expansion drilling along the Lupe vein at its Columba project in Chihuahua. The company has completed more than 30,000 m of drilling on its 60,000 m program, with 51 holes reported to date. “Drilling has outlined the Lupe Vein system over approximately 520 meters of strike and 450 meters of vertical extent, and it remains open for expansion”. Columba presents mineralization of intermediate sulfidation epithermal affinity.
Algo Grande Copper reported the remaining results from one drill hole at its Adelita project in Sonora. The results confirmed the presence of two mineralized intervals. Adelita presents skarn mineralization deemed distal to a porphyry copper system.
Kingsmen Resources reported results from one more drill hole at its Las Coloradas project in Chihuahua. On the #8 structure, “… the mineralization appears as a multidirectional stockwork of massive sulfides within pervasive phyllic alteration. The massive sulfides are accompanied by massive calcite, massive white quartz, and translucent quartz.” Las Coloradas is a good example of intermediate sulfidation epithermal veins.
Minaurum Silver informed on drill results from the Europa, Quintera, San José and Promontorio Sur vein zones, at its Alamos silver project in Sonora. These results are part of the ongoing phase II, 50,000 m resource expansion drilling program. Mineralization at Alamos Silver presents characteristics of intermediate sulfidation epithermal systems.
Eleven companies released results from drilling projects in Mexico during the week, by far the highest number since this weekly compilation started back in April of 2022. For ease of reading the table has been divided into precious metals base metals sections
Zacatecas Silver reported gold, silver, lead and zinc drilling results from drilling at El Cristo vein system at its Zacatecas Silver project in Zacatecas. “Mineralization at El Cristo is of an intermediate sulphidation epithermal type, which crops out with a dilational zone that is at least 3 km along strike and up to 600 m wide… El Cristo represents the northwest strike extension of the Veta Grande vein, which has reported, but unverified, historical production of 200 Moz AgEq”.
GR Silver Mining announced gold, silver, lead and zinc results from drill holes in the SE Area Extension on the San Marcial deposit, at its Plomosas project in Sinaloa. The holes “confirm the extension of high-grade silver mineralization within chlorite–hematite hydrothermal breccias hosted at the contact between the upper Oligocene volcanic sequence and the lower Jurassic volcanosedimentary unit”. Mineralization at San Marcial is of intermediate sulfidation epithermal characteristics.
Luca Mining reported new gold, silver, copper lead and zinc assay results from the ongoing 2026 drilling exploration program at its Tahuehueto mine in Durango. Reporting “… high-grade mineralization intersected across the Creston, Perdido veins and specifically at the Catorce Zone”. Mineralization at the property presents characteristics of intermediate sulfidation epithermal systems.
First Majestic Silver announced gold and silver drill results from its ongoing 2026 exploration program at its San Dimas (also known as Tayoltita) mine in Durango. The 117,000 m drilling program supports near-mine resource conversion and growth opportunities. Vein systems tested include Sinaloa-Elia, Coronado-Carmen Escobosa, Jessica, Luz and Patricia. San Dima presents mineralization ascribed to the low sulfidation epithermal category.
Questcorp Mining reported gold, silver, lead and zinc results from Phase 2A summer 2026 drilling campaign at the La Unión project in Sonora. “Drilling intersected near-surface gold and polymetallic mineralization at Union Norte, confirmed the continuation of the historic Sproul manto/replacement system at Union Mine…”.
Defiance Silver provided gold, silver, lead and zinc results on the drilling campaign on the San Acacio resource drilling program on its Zacatecas project, in Zacatecas. The drilling campaign designed to confirm the extension on strike and at depth of the known structures has completed 6,132 m in 21 holes. “The company is looking forward to integrating the assay results from the San Acacio drilling into the Mineral Resource Estimate, which is currently underway.”
Pinnacle Silver and Gold announced ongoing underground gold and silver drilling results on the historic Pinos Cuates mine at its Potrero property in Durango. Mineralization “… occurs in a low sulphidation epithermal breccia vein system hosted within andesites of the Lower Volcanic Series..”. Upcoming surface drilling will test gaps between known mineralization and the El Capulín and La Estrella veins.
Oroco Resource reported copper, molybdenum (not included here), gold and silver assay results from its Phase 2 resource drilling program in the South Zone of the Santo Tomás project in northern Sinaloa. Two of the holes in this program ended in mineralization 90 and 200 m respectively below the current PEA limits. Santo Tomás presents porphyry copper style mineralization.
Silver Tiger Metals announced gold and silver exploration drilling results for the 2026 Summer Program on the Northern Area at its El Tigre project in Sonora. The results are from the Caleigh, Protectora and the newly discovered Northern Sotckwork Zone. “The Northern Veins consist of several historically mined veins including the Protectora, Fundadora, and Aguila … and many newly discovered veins including Benjamin, the Benjamin Shale and Caleigh”. Mineralization at El Tigre presents characteristics mainly akin to intermediate sulfidation epithermal systems.
Algo Grande Copper reported Copper, gold, silver and zinc results from its Phase II drilling program on the Cerro Grande skarn, at its Adelita project in Sonora. “The mineralization in the skarn horizon occurs within massive brown garnet-dominant skarn (garnet > pyroxene), which the Company interprets as a high-temperature prograde skarn subsequently overprinted by a Cu-rich mineralizing event. The association of garnet-dominant skarn with bornite, chalcopyrite and abundant chalcocite suggests the drill hole may be approaching the proximal part of the mineralizing system, or a major hydrothermal fluid conduit”. Skarn mineralization at Adelita is interpreted as proximal to a porphyry copper system.
Tocvan Ventures announced new gold and silver drill results from El M;ezquite trend at tis Gran Pilar project in Sonora. “The latest drilling confirms gold mineralization along the 1,300-metre El Mezquite trend… located approximately 1.6 to 1.9 kilometres east of the Main Zone”. Mineralization at Gran Pilar presents intermediate sulfidation epithermal characteristics, being probably distal to a porphyry copper system.
