Minaurum’s Alamos silver project: first resource and mine design notes for engineers
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Minaurum Gold’s Alamos silver project in Sonora, Mexico has grown from three known veins in a small historic district to a district-scale system with multiple vein zones mapped over several kilometres of strike. The company is targeting its first NI 43-101 compliant resource estimate within weeks, following several drilling campaigns that stepped out well beyond historic workings. For geotechnical and mine planning teams, the shift from narrow historic stopes to a larger, structurally complex vein field signals a move towards more extensive drilling, structural modelling and staged underground access design.
Technical Brief
- Drilling has targeted both shallow and deeper shoots beneath historic workings to test vertical continuity.
- Step-out holes have been collared well outside old mine infrastructure to avoid voids and instability.
- Core logging is focused on vein thickness, brecciation and sulphide content to refine structural models.
- Underground access design is being considered around existing adits and shafts to minimise new surface disturbance.
- Historic stopes and voids require careful 3D reconciliation with new drilling to avoid unexpected breakthroughs.
- Structural interpretation is complicated by multiple vein orientations and splays, demanding dense drilling in key blocks.
- Mine planning must account for variable vein widths and grades across several kilometres of mapped structures.
Our Take
Silver projects in Mexico feature only sporadically in our recent Mining coverage compared with gold and copper, so Alamos gives Minaurum a chance to stand out in a less crowded exploration narrative for the country.
Moving to a first resource estimate at the Alamos silver project within weeks positions Minaurum to compete for capital against other early-stage silver names in our database that are still at pure drilling or target-generation stage.
For Mexico-focused practitioners, a new silver resource at Alamos will add another data point on how juniors are progressing projects without the large-scale JV or streaming deals that dominate many of the other 196 Projects-tagged pieces in our coverage.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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