Riverside Resources talks drilling at Union

Executive Summary

• Riverside Resources reports that drilling at the Union project is on schedule and within budget, with three of five primary targets now partially drilled.
• Initial hole at the historic Union mine intersected key host formations; additional holes in the El Cobre and North Union areas encountered extensive quartzite and hematitic oxides, indicating potential gold mineralization.
• The program is moving to the high‑potential Famosa target, with two initial holes planned; assay results from completed drilling are pending.

Key Details

• Drilling Status: 3 of 5 main targets (Union mine, El Cobre, North Union) have been initiated; work now progressing on the Famosa target.
• First Hole – Union Mine Target: Drilled southeast beneath historic workings, penetrated Clemente and Caborca formations, ending in Caborca formation within a microconglomeratic carbonate unit historically hosting mineralization.
• Sample Handling: Core samples sent to Bureau Veritas (Hermosillo) for fire assay; pulps forwarded to Bureau Veritas (Vancouver) for 45‑element ICP‑MS analysis using four‑acid digestion.
• El Cobre & North Union Areas: Holes oriented perpendicular to stratigraphy, targeting feeder zones along pre‑mineral fault structures in the Clemente formation; intersected more quartzite than modeled and extensive hematitic oxides—positive indicators for gold.
• Famosa Target Plan: Two initial holes to test beneath historic workings and along a steeply west‑dipping N‑S fault; historically produced >0.5 oz/ton Au (archival NI 43‑101 data).
• Assay Results: Pending – samples from completed holes are in assay labs; results will be integrated with ongoing surface programs, IP surveys, and refined geological models.
• Quality Assurance: QA/QC program implemented; standards inserted randomly into sample stream; qualified person review by Freeman Smith, P.Geo (non‑independent NI 43‑101 QP).

Notable Quotes

“We are pleased to see the Union project drill program advancing on schedule and on budget, with key targets now being tested,” said Dr. John‑Mark Staude, President and CEO of Riverside Resources.
“The geological information we’re gathering… is already refining our exploration model and setting us up for the next stages as the program moves ahead.”