Flow Metals Corp. (CSE: FWM) announced on November 9, 2026 that it has completed a 3D geophysical data compilation and reprocessing program at its flagship Sixtymile Gold Project in western Yukon. The program, carried out by in3D Geoscience Inc., converted 27.9 line-kilometres of historical CSAMT survey data from isolated 2D cross-sections into a unified 3D resistivity block model. The work is designed to map subsurface structures and alteration zones associated with copper-molybdenum porphyry and epithermal gold-silver targets in the Sixtymile Valley, potentially sharpening the company's drill targeting in an area where historical drilling already returned anomalous polymetallic results.

Key Points

  • Flow Metals Corp. (CSE: FWM) is a Vancouver-based mineral exploration company focused on gold and critical minerals in Yukon and British Columbia.
  • The company completed a 3D CSAMT resistivity block model of the Sixtymile Valley porphyry-epithermal target, reprocessing 27.9 line-kilometres of historical survey data.
  • The 3D model correlates conductive and resistive subsurface domains with historical drill intercepts showing hydrothermal alteration, brecciation, and anomalous copper, molybdenum, silver, and gold.
  • Investors may be watching for drill targeting decisions informed by ongoing fault digitisation, airborne magnetic grid integration, and statistical analysis of historical drill logs.

From 2D Sections to a Continuous 3D Resistivity Block Model at Sixtymile Valley

Historical operators completed 27.9 line-kilometres of controlled-source audio-frequency magnetotelluric (CSAMT) surveying across 27 lines over the Sixtymile Valley in 2011, but those data were previously interpreted only as isolated 2D cross-sections. Flow Metals engaged in3D Geoscience Inc., under the direction of Todd Ballantyne, P.Geo., to re-grid those inversions into one continuous 3D block model. The resulting model reveals a branching network of steeply dipping conductive structures alongside large high- and low-resistivity domains, providing a framework for tracing geological features across the system and into undrilled areas.

Sixtymile Valley Copper-Molybdenum and Epithermal Gold-Silver Target Geology

The 3D model delineates the Sixtymile Fault zone, cross-cutting structures, and distinct resistivity domains that broadly coincide with hydrothermal alteration, brecciation, and anomalous copper-molybdenum and silver-gold intervals in historical drill core. Surface mapping completed by the company in 2026 identified pervasive clay alteration and vuggy residual quartz at Miller Creek, which the release states may indicate the uppermost levels of a high-sulphidation epithermal system are preserved. Taken together, these observations suggest the valley could host a calc-alkaline porphyry-epithermal system, according to the announcement.

District Consolidation Adds Critical Minerals Dimension to Gold-Focused Project

Flow Metals optioned the Sixtymile Valley target area as part of a 2026 district consolidation announced on August 6, 2026, adding a critical minerals component alongside the project's primary gold focus. President and CEO Scott Sheldon stated in the release that combining the new 3D subsurface model with recent surface discoveries and encouraging historical copper-molybdenum drill results allows the team to look beneath the valley, connect observations across the system, and prioritise exploration targets. The mineral systems framework is intended to deprioritise areas lacking key subsurface features.

Technical Integration Work Under Way to Define Drill Targets

With the initial 3D block model complete, the technical team is now digitising the primary fault architecture in 3D space and cross-referencing resistivity volumes against newly filtered 2010 airborne magnetic grids. The company also plans to drape its 2026 surface mapping over the block model and conduct statistical analysis of historical drill logs and assay intervals against geophysical clusters to establish quantitative vectors for drill targeting. The technical content of the release was reviewed and approved by Harley Slade, P.Geo., a director of the company and Qualified Person under National Instrument 43-101.