Mexico Gold Drilling Results
Riverside Resources reports near-surface gold intercepts during drilling at Mexico project.
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Key Points
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At Union Norte, hole UND26-015 crossed an interpreted north-northwest-trending feeder structure carrying anomalous gold, lead and zinc from near surface; Riverside said the structure can be tested further along strike and down dip.
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The Union Mine intersection in hole UND26-013 was identified specifically as part of the historic Sproul manto mine, indicating continuity of that mineralized zone near previous underground workings.
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The Luis Hill drill hole was stopped before reaching its planned 150-meter depth because of drilling complications, leaving the chargeability anomaly only partly tested.
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Samples from the campaign were sent to SGS’s analytical facility in Hermosillo, Sonora, for assay work, providing the laboratory detail behind the reported results.
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Questcorp is earning into the Union Project under an option agreement dated May 6, 2025, adding a specific contractual timeline to the partnership described in the drilling update.
Riverside Resources has found near-surface gold at its Union Project in Sonora, Mexico, marking progress in a partnership with Questcorp Mining. Seven drill holes covering 530.1 meters in Phase 2A returned gold-equivalent intercepts including 14.60 meters grading 0.45 g/t and 9.10 meters grading 0.76 g/t, with some sections hitting 1.09 g/t and 3.38 g/t Market Screener.
Union Norte Shows Gold-Bearing Feeder Structure
Drilling at Union Norte intercepted an interpreted north-northwest-trending feeder structure carrying anomalous gold, lead and zinc from near surface. Hole UND26-015 is the most significant result so far. Market Screener reported the structure can be tested further along strike and at greater depths, making it a priority target for the next phase of work.
Lead-Zinc Mineralization Extends Historic Sproul Mine Zone
At Union Mine, hole UND26-013 encountered lead-zinc mineralization near historic underground workings. Market Screener identified the intersection as part of the Sproul manto mine, confirming continuity of that mineralized zone near previous excavations. This discovery supports the potential for a carbonate replacement deposit that extends beyond historical mining operations.
Luis Hill Survey Finds Long Chargeability Anomaly
An induced-polarization survey at Luis Hill outlined a chargeability anomaly more than one kilometer long and about 200 meters deep. The anomaly aligns with a sediment-hosted gold target. However, one drill hole was halted before reaching its planned 150-meter depth due to drilling complications, leaving the target only partially tested Market Screener.
Phase 2B to Use Reverse-Circulation Drilling
Faulting slowed drilling and reduced core recovery in several holes, prompting Riverside to consider reverse-circulation drilling for Phase 2B. The company plans to resume work after the monsoon season, targeting Union, Union Norte, Luis Hill and Jabali Market Screener. Questcorp is earning into the Union Project under an option agreement dated May 6, 2025, cementing the partnership's commitment to continued exploration.
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