Strategic Drilling Advancements and Exploration Momentum at Riverside and Questcorp's Union Project

According to a report by Financial Content, Riverside Resources Inc. and Questcorp Mining Inc. have made significant strides in their drilling program at the Union Project in Sonora, Mexico, with three of five primary targets now partially drilled and progressing on schedule and within budgetRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1]. This momentum underscores the companies' strategic focus on underexplored basins, particularly in the Clemente and Caborca formations, which have historically hosted gold mineralization at the site. The Union Mine target, for instance, has already intersected key host units, including a microconglomeratic carbonate zone in the Caborca Formation—a feature previously associated with mineralization at the bottom of the Union MineRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1].

The drilling methodology employed by the joint venture reflects a sophisticated approach tailored to carbonate-hosted replacement deposit (CRD) systems. As noted in a Junior Mining Network analysis, angled drill holes are oriented perpendicular to stratigraphy and structural targets, aiming to intersect potential feeder zones along fault structuresQuestcorp and Riverside Maiden Drill Program Advancing at Union Project with Three of Five Targets Completed^[2]. This technique is critical for CRD systems, where gold is often concentrated in mantos, chimneys, and structural corridors. Notably, the El Cobre and North Union areas have yielded unexpected results, including higher-than-anticipated quartzite content and extensive hematitic oxides—indicators of potential gold mineralization linked to oxidized sulfidesRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1]. These findings align with historical mining data, which suggest that oxide zones were historically exploited, leaving sulfide-rich areas underexploredRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1].

The Famosa target, a high-potential area with historical gold production exceeding ½ oz/ton Au, is now the focus of the next phase of drillingRiverside Resources Inc.: Riverside and Questcorp Drilling Advancing at Union Project^[3]. Two initial holes are planned to test beneath and along strike from historic workings, targeting a steeply west-dipping fault structure and its host rocks. This approach is supported by a revised geological model emphasizing fracture- and quartz-pyrite veinlet-hosted mineralization, a shift driven by the unexpectedly high quartzite content in the Clemente FormationRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1]. Such adaptability in geological modeling is a hallmark of successful exploration programs, as it allows companies to refine targets based on real-time data.

A rigorous QA/QC program further strengthens the credibility of the Union Project's results. Core samples are being analyzed at Bureau Veritas laboratories in Hermosillo, Mexico, and Vancouver, Canada, ensuring consistency in gold fire assay and ICP-MS multi-element analysisRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1]. This dual-laboratory approach mitigates regional variability in testing and enhances data comparability—a critical factor for investors evaluating the project's potential.

Looking ahead, the joint venture plans to integrate assay results with additional induced polarization (IP) surveys and surface programs to refine geological interpretationsRiverside and Questcorp Drilling Advancing at Union Project with Three of Five Targets Progressed^[1]. This multi-pronged strategy not only de-risks exploration but also aligns with industry best practices for advancing underexplored basins. For investors, the Union Project's adherence to schedule and budget, combined with its strategic targeting of both oxide and sulfide zones, positions Riverside and Questcorp as key players in Mexico's gold exploration sector.

In conclusion, the Union Project exemplifies how strategic drilling methodologies and adaptive geological modeling can unlock value in underexplored basins. With three targets already advanced and a clear roadmap for Famosa, the joint venture's progress warrants close attention from investors seeking exposure to high-potential gold projects in politically stable jurisdictions like Sonora.