# Copper Mining News in Idaho Canonical page: https://atlas-extractions.minestarters.com/news?commodities=copper®ions=usa_id Atlas summarizes and classifies mining-industry stories from third-party publishers. Follow each source link for the original reporting. Results: 22 Returned: 10 Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied. Region: Idaho (usa_id) Commodity: Copper (copper) Applied filters: {"regions":["usa_id"],"commodities":["copper"],"commodity_scope":"primary","document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"} Sort: published_at desc Offset: 0; page size: 10 [Next page](https://atlas-extractions.minestarters.com/news.md?commodities=copper®ions=usa_id&page=2&page_size=10) ## Clarity Enters Agreement to Acquire Idaho Copper Project - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/clarity-enters-agreement-to-acquire-idaho-copper-project--eabf217f-db57-45a2-bd9e-d9e8bef1f0e5) · [Markdown](https://atlas-extractions.minestarters.com/news/clarity-enters-agreement-to-acquire-idaho-copper-project--eabf217f-db57-45a2-bd9e-d9e8bef1f0e5.md) - Original announcement: 2026-09-23T12:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Clarity Metals Corp. (CMET) - Original source: [newsfile](https://www.newsfilecorp.com/release/315586/Clarity-Enters-Agreement-to-Acquire-Idaho-Copper-Project) - Atlas sentiment: 0.293 - Atlas tags: Nearology Play, Apparent Width Only, No QA/QC Disclosure Clarity Metals Corp. has entered an agreement to acquire an 80% interest in the Bobcat Project in Idaho from BG Copper Corp. via the issuance of 20,000,000 units. The project is a copper porphyry system with historic drill results and a historic underground gold producer on site. ## Hercules advances Hook in Idaho after porphyry signs - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-advances-hook-in-idaho-after-porphyry-signs--19755902-20c7-449e-a3c1-4ac0bd2a366e) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-advances-hook-in-idaho-after-porphyry-signs--19755902-20c7-449e-a3c1-4ac0bd2a366e.md) - Original announcement: 2026-09-15T17:44:35.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals (BIG) - Original source: [northernminer](https://www.northernminer.com/news/hercules-advances-hook-in-idaho-after-porphyry-signs/1003894869/) - Atlas sentiment: 0.226 - Atlas tags: QA/QC Disclosed, Nearology Play Hercules Metals reported that reconnaissance drilling at the Hook target in Idaho identified porphyry-style and skarn alteration, suggesting the mineralized system is shallower than previously expected. While specific assay results are pending, the presence of alteration and a strong chargeability anomaly supports the potential for a broader porphyry copper district. ## Hercules Metals discovers evidence for new porphyry center at Hook Target, Idaho - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-discovers-evidence-for-new-porphyry-center-at-hook-target-idaho--01e6df41-a4a9-4ccb-84bf-f3de33602fa7) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-discovers-evidence-for-new-porphyry-center-at-hook-target-idaho--01e6df41-a4a9-4ccb-84bf-f3de33602fa7.md) - Original announcement: 2026-09-14T11:51:22.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [resourceworld](https://resourceworld.com/hercules-metals-discovers-evidence-for-new-porphyry-center-at-hook-target-idaho/) - Atlas sentiment: 0.223 - Atlas tags: Nearology Play, No QA/QC Disclosure Hercules Metals Corp. reported that drill hole HER-26-03 intersected phyllic and skarn alteration at the new Hook target in Idaho, providing geological evidence for a potential porphyry copper-molybdenum system. Assays for the hole are currently pending. The company is also managing the cancellation of certain stock options at the request of the TSX Venture Exchange. ## Hercules Metals Identifies Evidence for a New Porphyry Center at the Hook Target - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-identifies-evidence-for-a-new-porphyry-center-at-the-hook-target--e4da8a4b-320e-4e02-bd1f-a6eaeab4bacf) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-identifies-evidence-for-a-new-porphyry-center-at-the-hook-target--e4da8a4b-320e-4e02-bd1f-a6eaeab4bacf.md) - Original announcement: 2026-09-14T10:30:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [newsfile](https://www.newsfilecorp.com/release/314088/Hercules-Metals-Identifies-Evidence-for-a-New-Porphyry-Center-at-the-Hook-Target) - Atlas sentiment: 0.223 - Atlas tags: Nearology Play, QA/QC Disclosed, No QA/QC Disclosure Hercules Metals has completed reconnaissance drilling at the Hook target, intersecting intense phyllic and skarn alteration consistent with a porphyry copper system. While assays are still pending, the geological findings support the company's plan to permit access to the high-strength chargeability anomaly for follow-up drilling in 2027. ## IDEX Metals Outlines Four Broad Chargeability Targets Across 91.45 Line-Kilometre IP Survey at the Freeze Copper Project, Idaho, USA - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/idex-metals-outlines-four-broad-chargeability-targets-across-91-45-line-kilometr--6ef39a78-e31e-470e-acc8-4ef62b303e1d) · [Markdown](https://atlas-extractions.minestarters.com/news/idex-metals-outlines-four-broad-chargeability-targets-across-91-45-line-kilometr--6ef39a78-e31e-470e-acc8-4ef62b303e1d.md) - Original announcement: 2026-08-11T12:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: IDEX Metals Corporation (IDEX) - Original source: [tmx](https://money.tmx.com/en/quote/IDEX/news/5697522946649286/idex-metals-outlines-four-broad-chargeability-targets-across-91-45-line-kilometr) - Atlas sentiment: 0.335 - Atlas tags: Step-Out Extension, No QA/QC Disclosure IDEX Metals has completed a 91.45 line-kilometre IP survey at the Freeze Copper Project, identifying four broad chargeability targets (A, B, C, and D) consistent with a porphyry system. Recent drilling at North Breccia and Kismet has visually identified copper, molybdenum, and tungsten, with assays currently pending. ## Hercules Metals Announces the Appointment of Former Arizonan Sonoran Management Team Led by George Ogilvie - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-announces-the-appointment-of-former-arizonan-sonoran-management--8d2d4086-407c-4fdf-adda-6ca6b957766a) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-announces-the-appointment-of-former-arizonan-sonoran-management--8d2d4086-407c-4fdf-adda-6ca6b957766a.md) - Original announcement: 2026-07-30T13:48:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [tmx](https://money.tmx.com/en/quote/BIG/news/6089888080875885/hercules-metals-announces-the-appointment-of-former-arizonan-sonoran-management-) - Atlas sentiment: 0.696 - Atlas tags: Nearology Play Hercules Metals has appointed a new senior management team led by George Ogilvie, effective September 1, 2026. The incoming team, formerly of Arizona Sonoran Copper Company, brings extensive experience in project development and M&A to advance the Leviathan copper-silver porphyry discovery in Idaho. ## Hercules Metals Completes IP Survey at Hook Target, Defining Large, Near-Surface Chargeability Anomaly - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-completes-ip-survey-at-hook-target-defining-large-near-surface-c--0d75eb46-71b5-4183-b1e4-40d58e6790e1) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-completes-ip-survey-at-hook-target-defining-large-near-surface-c--0d75eb46-71b5-4183-b1e4-40d58e6790e1.md) - Original announcement: 2026-07-02T11:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [tmx](https://money.tmx.com/en/quote/BIG/news/5143242158987195/hercules-metals-completes-ip-survey-at-hook-target-defining-large-near-surface-c) - Atlas sentiment: 0.358 - Atlas tags: Step-Out Extension, QA/QC Disclosed Hercules Metals has completed an IP survey at the Hook target, defining a 1.8-kilometer chargeability anomaly that resembles the Leviathan porphyry discovery. The company also reported that drill hole HER-26-01 at Southern Flats successfully extended porphyry mineralization 200 meters west of a previously reported intercept. ## Hercules Metals Intersects 788 m of 0.54% Copper Equivalent and 802 m of 0.40% Copper Equivalent at the Leviathan Porphyry System in Idaho - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-intersects-788-m-of-0-54-copper-equivalent-and-802-m-of-0-40-cop--8e77996b-3879-4f97-9c9b-912f90a43fdb) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-intersects-788-m-of-0-54-copper-equivalent-and-802-m-of-0-40-cop--8e77996b-3879-4f97-9c9b-912f90a43fdb.md) - Original announcement: 2026-06-16T11:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [tmx](https://money.tmx.com/en/quote/BIG/news/8802075479458633/hercules-metals-intersects-788-m-of-0-54-copper-equivalent-and-802-m-of-0-40-cop) - Atlas sentiment: 0.493 - Atlas tags: QA/QC Disclosed, Apparent Width Only, Step-Out Extension Hercules Metals reported significant drill results from the Leviathan Porphyry system in Idaho, including an 801.6 m intercept of 0.40% CuEq in hole HER-25-21. The company also highlighted high-grade intercepts at the top of the system and strong IP chargeability anomalies at the new Hook target. ## HER-25-25 Intersects Margins of a New Blind Copper Porphyry System at the Southern Flats Zone, Hercules Project, Idaho - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/her-25-25-intersects-margins-of-a-new-blind-copper-porphyry-system-at-the-southe--84435a89-e5fe-4849-b738-47673de759e2) · [Markdown](https://atlas-extractions.minestarters.com/news/her-25-25-intersects-margins-of-a-new-blind-copper-porphyry-system-at-the-southe--84435a89-e5fe-4849-b738-47673de759e2.md) - Original announcement: 2026-05-26T11:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [tmx](https://money.tmx.com/en/quote/BIG/news/8358326510598013/her-25-25-intersects-margins-of-a-new-blind-copper-porphyry-system-at-the-southe) - Atlas sentiment: 0.441 - Atlas tags: Step-Out Extension, QA/QC Disclosed, Apparent Width Only Hercules Metals Corp. has reported drill results from hole HER-25-25 at the Hercules Project in Idaho, intersecting the margins of a new copper porphyry system. The hole returned a significant intercept of 176.78 m at 0.56% Cu and 0.66% CuEq, with step-out drilling currently underway to target the core of a large MT conductivity anomaly. ## Hercules Metals Intersects 670 m of 0.45% Copper, 4 g/t Ag and 95 ppm Mo, including 213 m of 0.67% Copper, 10 g/t Ag, 128 ppm Mo at the Leviathan Porphyry System in Idaho - Atlas analysis: [Read analysis](https://atlas-extractions.minestarters.com/news/hercules-metals-intersects-670-m-of-0-45-copper-4-g-t-ag-and-95-ppm-mo-including--1e3c9c69-8e5a-4012-995a-a0803066d425) · [Markdown](https://atlas-extractions.minestarters.com/news/hercules-metals-intersects-670-m-of-0-45-copper-4-g-t-ag-and-95-ppm-mo-including--1e3c9c69-8e5a-4012-995a-a0803066d425.md) - Original announcement: 2026-03-30T11:00:00.000Z - Atlas analysis published: Unknown date - Atlas analysis updated: Unknown date - Company: Hercules Metals Corp. (BIG) - Original source: [tmx](https://money.tmx.com/en/quote/BIG/news/8373007392880534/hercules-metals-intersects-670-m-of-0-45-copper-4-g-t-ag-and-95-ppm-mo-including) - Atlas sentiment: 0.842 - Atlas tags: Step-Out Extension, QA/QC Disclosed, True Width Disclosed, Metal Equivalent Opaque, Cut-off Undisclosed Hercules Metals announced significant drill results from its Leviathan porphyry copper system in Idaho, highlighted by hole HER-25-18 intersecting 670.44 metres grading 0.45% copper, 4.0 g/t silver, and 95 ppm molybdenum, representing the longest interval to date. This 200-metre step-out hole demonstrates strong continuity of mineralization and expands the known footprint of the system. The company also reported distal silver-lead-zinc mineralization from reconnaissance drilling, indicating further exploration potential. # Atlas tag definitions - **Bonanza Intercept:** Exceptionally high-grade zone, well above the deposit-type norm. - **Metal Equivalent Opaque:** Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent. - **True Width Disclosed:** Actual thickness perpendicular to structure is stated, not just downhole length. - **Apparent Width Only:** Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. - **QA/QC Disclosed:** Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates). - **Compositing Transparent:** Cut-off grade and internal dilution rules are clearly stated for reported intervals. - **No QA/QC Disclosure:** Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. - **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers. - **Step-Out Extension:** Mineralization extended beyond the previously known limit. - **Infill Drilling:** Confirmatory drilling to raise resource confidence, not new discovery. - **Stale Data Re-release:** Historical results re-announced with no new assays or reinterpretation — low genuine novelty. - **Deleterious Elements Present:** A source-stated penalty, refractory or recovery concern in the fact's scope. Element detection alone, including measured elements explicitly below penalty thresholds, does not trigger this tag. Respect negation and retain a separately stated concern even when another risk is explicitly absent. - **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery. - **Nearology Play:** Value premise rests on proximity to a known deposit rather than own results. - **Measured Resource:** Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. - **Indicated Resource:** Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. - **Proven Reserve:** Measured Resource with demonstrated economic viability after applying modifying factors. - **Probable Reserve:** Indicated Resource with demonstrated economic viability after applying modifying factors. - **Inferred Resource:** Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. - **All Inferred:** M&I share below the weak bound — very early stage, no engineering confidence. - **Tonnage Growth:** Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. - **Grade Improvement:** Average resource grade improved vs prior estimate — better deposit economics. - **Contained Metal Growth:** True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. - **Category Upgrade:** Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal. - **Tonnage Decline:** Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down. - **Grade Decline:** Average grade fell below the red-flag bound vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. - **Contained Metal Decline:** Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain. - **Category Downgrade:** Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning. - **Dilutive Growth:** Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion. - **Cut-off Lowered:** Cut-off grade reduced beyond the suspicious bound vs prior estimate — tonnage growth may be artificial inflation. - **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers. - **Stale Estimate:** Effective date is >2 years old — data currency concern, may not reflect current geological understanding. - **QP/CP Signed:** Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience. - **Cut-off Disclosed:** Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. - **JORC Compliant:** Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard. - **NI 43-101 Compliant:** Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard. - **Historical Estimate Only:** Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling. - **No Contained Metal:** Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. - **No QP/CP Disclosure:** No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. - **Maiden Resource:** First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable. - **Resource Update:** Revised estimate for an existing resource — compare to prior to assess progress. - **PEA-Supporting:** Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. - **PFS-Supporting:** Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. - **DFS-Supporting:** Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. - **High Recovery:** Recovery at or above the exceptional band for the commodity and processing route. - **Pilot Scale Complete:** Pilot or demonstration plant testing completed under continuous operation. - **Free Milling:** Simple, clean ore amenable to standard processing without oxidation. - **Multi-Domain Tested:** Variability across ore domains (oxide, transition, fresh) has been addressed. - **Recovery Improving:** Recovery improved versus a like-for-like prior test program on the same domain and route. - **Low Recovery:** Recovery below the weak band for the commodity and processing route. - **Bench Scale Only:** Only preliminary bench tests completed — no locked-cycle or pilot work. - **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery. - **Single Domain Only:** Testing limited to one composite or domain — representativeness not established. - **Recovery Stagnant:** No improvement across multiple test programs on comparable material. - **Theoretical Recovery Only:** Only theoretical or liberation-derived recovery reported, with no actual test result. - **Heap Leach Route:** Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. - **Mill Route:** Processing via mill or concentrator (CIL, CIP, tank leach, flotation). - **Gravity Route:** Gravity separation forms a material part of the flowsheet. - **POX/BIOX Route:** Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX. - **Byproduct Commodity:** The tested commodity is a byproduct rather than the primary economic driver. - **DFS Bankable:** AACE Class 2-1 study complete and within the staleness window. - **PFS Complete:** AACE Class 3 study complete. - **PEA Only:** Only Class 4 / Initial Assessment economics available. Not bankable. - **No Study:** No formal economic study — no engineering basis for the economics quoted. - **Stale Study:** Beyond the staleness window measured from the estimate base date. - **Inferred Heavy Feed:** Material Inferred share of LOM mill feed, or the share is undisclosed. - **Resource Governance Undisclosed:** No QA/QC, top-cut methodology or QP independence disclosed. Caps study quality at the moderate tier. - **NPV Cut vs Prior Study:** A restated study reduces NPV materially against its own predecessor on the same asset. - **High IRR:** Post-tax real unlevered IRR in the strong tier or better. - **Low IRR:** IRR below the moderate tier. - **Below Jurisdiction Hurdle:** IRR below the greenfield or brownfield hurdle for its jurisdiction tier. - **IRR Basis Undisclosed:** Real vs nominal not stated, so the tier is not comparable across studies. - **Undervalued PNAV:** Funding-adjusted P/NAV in the strong tier or better. - **Overvalued PNAV:** Funding-adjusted P/NAV in the red-flag tier. - **Fast Payback:** Payback in the strong tier or better, on the required basis. - **Slow Payback:** Payback in the weak tier or worse. - **Bottom Quartile Cost:** P0-25 of the relevant commodity cost curve. - **Top Quartile Cost:** P75-100 of the relevant commodity cost curve — first to cut in a downturn. - **Cost Basis Undisclosed:** By-product vs co-product not stated, so quartile placement is unreliable. - **Low Capital Intensity:** Below the benchmark for its project type. - **High Capital Intensity:** Above the benchmark for its project type. - **Conservative Pricing:** Conservative on the worst of the spot, 3-year and consensus comparisons. - **Aggressive Pricing:** The study only works on a stretched price deck. - **No Price Sensitivity:** No price sensitivity disclosed — treated as a deliberate signal, not a neutral gap. - **No Discount Rate Sensitivity:** Blocks NPV normalisation to the common rate without reconstruction. - **Price Deck Unstructured:** Prices given only as free text, so conservatism cannot be scored. - **Long Reserve Life:** Reserve life index in the top tier of the single ladder. - **Short Reserve Life:** Reserve life index in the critical tier. - **Resource Life Upside:** Wide gap between reserve life and resource life — conversion upside rather than discovery dependence. - **Fully Funded:** Funding coverage at or above 1.0x counting committed facilities only. - **Material Funding Gap:** Funding coverage below the substantially-funded band. - **Funding Gap Exceeds Market Cap:** Red flag regardless of headline NPV — the upside is not reachable by the current equity holder. - **Encumbered by Stream:** An existing stream or royalty reduces attributable NAV and restricts future financing. - **Stability Agreement:** Fiscal terms fixed, with a term covering the mine life. - **High Government Take:** Total government take above the regional norm as a share of pre-tax cash flow. - **Fully Permitted:** Key permits granted with no unresolved challenge. - **Permit Challenge Outstanding:** An appeal or legal challenge is unresolved, which can defer first production indefinitely. - **No Community Agreement:** Permits held but no IBA or benefit agreement — the start date is unsupported. - **Closure Underprovisioned:** Closure provision materially below peers, unfunded, or undisclosed. - **Upstream TSF:** Upstream tailings construction, which is banned in Brazil and Ecuador.