Northwire Canada EditionWednesday, July 15, 2026
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EFF 0.030 +20.0% W 0.500 +1.0% RDG 0.160 +0.0% ARIC 0.780 +4.0% VROY 3.44 +5.2% ROCK 3.81 +3.0% APMI 0.120 +0.0% EM 3.58 −4.8% ALS 66.04 +6.8% MEK 0.065 +44.4% TLO 6.00 +13.0% ADE 0.045 −66.7% FAIR 0.060 +33.3% SVRS 0.420 −2.3% RES 0.050 +42.9% CYG 0.120 +0.0% EFF 0.030 +20.0% W 0.500 +1.0% RDG 0.160 +0.0% ARIC 0.780 +4.0% VROY 3.44 +5.2% ROCK 3.81 +3.0% APMI 0.120 +0.0% EM 3.58 −4.8% ALS 66.04 +6.8% MEK 0.065 +44.4% TLO 6.00 +13.0% ADE 0.045 −66.7% FAIR 0.060 +33.3% SVRS 0.420 −2.3% RES 0.050 +42.9% CYG 0.120 +0.0%
Production / Operations Routine +

Grande Portage Resources Initiates Full Scale Geochemical Characterization Program and Backfill Testwork for the New Amalga Gold Project

Grande Portage Advances New Amalga Permitting Following Strong PEA; Sprott Backing Remains Key Support

By The Northwire Desk — AI Analysis Apr 29, 2026 · 02:00 GPG · 0.365 Grande Portage Resources Ltd.
Executive Summary
  • Grande Portage Resources has initiated a formal Geochemical Characterization Program at the New Amalga Gold property in Alaska.
  • The program focuses on determining acid-generating potential of rock types and testing Cemented Rock Fill (CRF) strength for underground mining support.
  • Results are critical inputs for Federal NEPA environmental review and State of Alaska mining permits.
  • Labwork to be performed by SGS North America with technical oversight by Stantec Consulting Services Inc.
  • Includes first-ever creation of CRF utilizing New Amalga material to assess uniaxial compressive strength (UCS) and required cement content.
  • This follows the Preliminary Economic Assessment (PEA) filed on April 21, 2026, which showed robust economics ($979m NPV5 at $3,200/oz).
Material Impact
  • The news represents expected progress in the development timeline following the PEA release on April 15 and filing on April 21.
  • It validates the engineering assumptions made in the PEA regarding underground mining support (backfill) and environmental compliance.
  • No new economic upside or resource discovery is announced; it confirms execution of the previously disclosed plan.
  • The market likely anticipated this step as part of the permitting pathway to Feasibility Study.
  • Given the significant price appreciation following the Sprott investment and PEA, this incremental update serves to reduce execution risk rather than drive immediate valuation expansion.
GPG · Price
Company Overview
  • Company: Grande Portage Resources Ltd., focused solely on the New Amalga Gold Project in Southeast Alaska.
  • Project Location: 25km north of Juneau, within the Juneau Gold Belt (proven district producing >8M oz).
  • Resource Estimate (July 17, 2024): Indicated Gold: 1,438,500 oz @ 9.47 g/t Au; Inferred Gold: 515,700 oz @ 8.85 g/t Au.
  • Development Strategy: Small-footprint underground mine with third-party offsite processing (Direct Shipping Ore), eliminating onsite mill and tailings facility.
  • PEA Highlights: Pre-tax NPV $979M at $3,200/oz gold; 69% IRR; 1.1-year payback period.
Read the original news release →

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Technical Study