Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy
    Projects

    Royal Road underground mine potential at Guintar: drilling takeaways for engineers

    March 18, 2026|

    Reviewed by Tom Sullivan

    Royal Road underground mine potential at Guintar: drilling takeaways for engineers

    First reported on MINING.com

    30 Second Briefing

    Royal Road Minerals’ latest drilling at the Guintar-Aleman-Margaritas project in Antioquia, Colombia, points to a bulk-tonnage underground scenario, with hole GUI-DD-028 returning 76 metres at 2.1 g/t gold, 0.4% copper and 7.9 g/t silver from 45 metres depth. CEO Tim Coughlin reports a porphyry-skarn system extending from surface over more than 2 sq. km and beyond 500 metres depth, overprinted by steep, high-grade quartz-carbonate veins. The 2,500-metre 2026 campaign, following 13,700 metres in 43 prior diamond holes, targets continuous mineralisation that remains open at depth.

    Technical Brief

    • GUI-DD-031 intersected 15 m at 1 g/t Au, 0.6% Cu, 11.3 g/t Ag from 130 m.
    • Mineralisation in GUI-DD-031 is continuous from surface to end-of-hole over 193.7 m.
    • More than half of the 43 historic diamond holes (13,700 m total) terminated in mineralised intervals.
    • Guintar lies ~50 km east of Medellín within an established Antioquia gold-mining district hosting multiple producing operations.
    • Drilling was paused after 2022 to prioritise regulatory and permitting work, then restarted two months ago.
    • Royal Road acquired Guintar and Margaritas from AngloGold Ashanti in 2019 via a country-wide licence package.
    • Company-wide, Royal Road controls over 1,800 sq. km of Colombian mining concessions and applications, indicating substantial regional upside.

    Our Take

    AngloGold Ashanti’s role at Guintar-Aleman-Margaritas sits alongside its recent exploration success at the Silicon project in Nevada and its equity move into Thesis Gold, signalling that the major is keeping optionality in higher-grade gold–copper systems across the Americas rather than exiting early-stage positions outright.

    The 2 sq. km porphyry–skarn system with mineralisation traced beyond 500 metres depth at Guintar is large by Colombian standards in our database, which tends to favour underground block cave or bulk stoping concepts over open pit in similarly constrained Andean terrains.

    With Royal Road’s market value around C$53 million and only four new holes planned this year, the scale of the Guintar system implies that any move to an underground mine concept in Antioquia will likely need either a strategic partner or staged de-risking similar to other Latin American copper–gold juniors in our coverage.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    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.

    Related Articles

    BHP’s new CEO Brandon Craig: portfolio, capex and project signals for engineers
    Mining
    about 2 hours ago

    BHP’s new CEO Brandon Craig: portfolio, capex and project signals for engineers

    BHP has appointed Brandon Craig as its new chief executive officer, succeeding Mike Henry at the helm of the world’s largest diversified miner. Craig steps up from within BHP’s leadership ranks, inheriting a portfolio dominated by iron ore, metallurgical coal, copper and nickel, with major operations in the Pilbara, Bowen Basin and South America. The transition signals continuity in large-scale bulk and base metals strategy, with implications for long-life asset investment, brownfield expansion decisions and capital allocation across BHP’s global open-pit and underground operations.

    Orla’s Camino Rojo permit: underground transition economics for mine planners
    Mining
    about 3 hours ago

    Orla’s Camino Rojo permit: underground transition economics for mine planners

    Orla Mining has secured SEMARNAT approval of the environmental impact assessment for Camino Rojo in Zacatecas, giving it all permits needed to complete the oxide open pit, including the northern layback, east–west pit expansion, and extensions to waste rock and low-grade stockpiles and related infrastructure. The EIA also authorises an underground exploration portal and decline, targeted to start in H2 2026, to define sulphide resources beneath the current pit and support a potential underground transition. Orla’s updated technical report outlines a 17‑year underground operation with initial capital of $608 million, sustaining capital of $489 million, and an IRR rising from 30% at $3,100/oz to 61% at $5,000/oz gold.

    Sandvik HPA20 resin injection pump: bolt installation control for ground engineers
    Mining
    about 3 hours ago

    Sandvik HPA20 resin injection pump: bolt installation control for ground engineers

    Sandvik has introduced the HPA20 automatic resin injection pump for resin-based ground support, designed to automate resin mixing and delivery in underground bolting operations. The system integrates with Sandvik bolters to control resin volume and injection pressure, reducing manual handling at the face and improving consistency in encapsulation around rock bolts. For geotechnical and ground support engineers, this points to tighter control of bolt installation parameters and potential reductions in variability of resin annulus quality in highly stressed ground.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Tunnelling

    Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.