Aurora Prospect Yields Rock Chip Gold Grades Up to 29.3 g/t

Golden Mile Resources has reported outstanding high-grade gold assays up to 29.3 g/t from its Aurora Gold Prospect within the Pearl Copper Project in Arizona, reinforcing the site's exploration potential.

  • Rock chip samples yield gold grades up to 29.3 g/t
  • Significant silver and lead mineralisation accompanies gold
  • Aurora Prospect located near historic mine workings in Arizona
  • Further mapping, sampling, and drilling planned to define mineralisation
  • Pearl Copper Project situated in a top-tier US mining jurisdiction
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Aurora Prospect Delivers High-Grade Gold Assays

Golden Mile Resources Limited (ASX – G88) has announced a new set of rock chip assay results from its Aurora Gold Prospect, part of the Pearl Copper Project in Arizona, USA. The assays reveal gold grades reaching an impressive 29.3 grams per tonne (g/t), alongside notable silver and lead values, marking the highest grades recorded at Aurora to date and surpassing earlier results from January 2025.

The Aurora Prospect is situated within a cluster of historic mine workings approximately 800 meters east of the Odyssey Prospect. The mineralisation occurs within brecciated, shear-hosted quartz veins exhibiting strong iron staining, indicative of oxidised sulphide minerals. These veins also show elevated silver up to 36 g/t and lead concentrations as high as 1.59%, underscoring the multi-element potential of the site.

Strategic Location in a Tier 1 Mining Jurisdiction

The Pearl Copper Project lies in the San Manuel mining district of Pinal County, Arizona, a region renowned for its prolific copper and gold deposits. Arizona ranks as the USA’s top copper-producing state and is considered a Tier 1 mining jurisdiction, supported by robust infrastructure including sealed roads, railways, and power transmission. The project is positioned within the Laramide Porphyry Copper Province, a major metallogenic belt responsible for approximately 70% of US copper production in 2023.

Despite its promising location near BHP’s San Manuel-Kalamazoo Mine, one of the largest deposits in the province, the Pearl Project has seen minimal modern exploration and has never been drilled, highlighting significant upside potential.

Next Steps in Exploration

Golden Mile plans to advance the Aurora Prospect through detailed geological mapping and further geochemical sampling to better delineate the extent of gold mineralisation. The company is also preparing permit addendums with the Arizona State Land Department and Bureau of Land Management to facilitate upcoming drilling programs. These efforts aim to clarify the structural controls and mineralisation continuity, which remain key unknowns at this stage.

Managing Director Damon Dormer emphasized the significance of these results, stating that Aurora continues to emerge as a compelling gold target within the broader Pearl Copper Project. The company’s multi-commodity strategy and joint venture agreements position it well to unlock value from this underexplored asset.

Balancing Optimism with Caution

While the high-grade rock chip assays are encouraging, it is important to note that these samples represent surface grab samples with irregular spacing and directional bias. No drilling results have yet been reported, and the true extent and economic viability of the mineralisation remain to be confirmed. Investors should watch closely for upcoming drilling results and resource updates that will provide a clearer picture of the project’s potential.

Bottom Line?

Golden Mile’s Aurora Prospect is shaping up as a high-grade gold target, but the real test lies ahead with drilling and resource definition.

Questions in the middle?

  • How extensive is the gold mineralisation beneath the surface at Aurora?
  • What will drilling reveal about the continuity and grade of the deposit?
  • How will the joint venture and permitting progress impact exploration timelines?