Western Ridge Resources (ASX:WRX) has reported first assay results from its inaugural drilling campaign at the Keystone Project in Northwestern Nevada, USA, with preliminary results for two drillholes returning broad shallow silver mineralisation and anomalous tungsten intercepts, according to a company filing dated 12 November 2026.

Key Points

  • Drillhole 26KSTRC003 returned 41.15m at 30.83g/t silver from 41.15m, including a higher-grade interval of 1.52m at 273g/t silver
  • Drillhole 26KSTRC004 returned 44.2m at 26.81g/t silver from 30.48m, including 1.52m at 200g/t silver
  • Anomalous tungsten intersected in 26KSTRC003, including 1.52m at 1,130g/t tungsten from 57.91m depth
  • At least five further lodes identified beneath the known historical workings, with mineralisation remaining open at depth and along strike
  • Assays are pending for seven additional drillholes from the nine-hole phase one campaign completed in September

Keystone Phase One Drilling Results

Preliminary assay results were returned by ALS Laboratories in Reno for drillholes 26KSTRC003 and 26KSTRC004, two of nine holes completed at the Keystone Project in September 2026. The filing states results indicate multiple sub-horizontal lodes analogous to those exploited between 1937 and 1943, during which 36,000 ounces of silver was recovered from approximately 1,500 tonnes of material taken from a single stope in the historical workings. The results identified at least five further lodes beneath the known workings, supporting the company's model that these structures continue at depth. A broad mineralised "halo" envelope was also identified surrounding the higher-grade lodes, with the mineralised body described as remaining open in all directions.

Tungsten Mineralisation at Keystone

Anomalous tungsten was intersected in drillhole 26KSTRC003, with two intervals of note reported: 3.05m at 501.5g/t tungsten from 41.15m and 1.52m at 1,130g/t tungsten from 57.91m. The filing notes that Keystone is located approximately 9km north of the historic Springer tungsten mine, currently owned by Blue Moon Metals (TSX.V: MOON), within a comparable geological setting of analogous sedimentary strata intruded by the same granodiorite. The company stated the identification of highly anomalous tungsten values supports its view that the Keystone project holds discovery potential for tungsten in addition to silver.

Broader Exploration Targets and Future Work

The filing states that previous aeromagnetic surveying has identified up to nine similar geophysical targets associated with historical workings within the immediate Keystone area, many of which remain untested by modern exploration. The company disclosed it is updating plans in parallel with ongoing receipt of remaining assays from phase one drilling and is preparing for further drilling in 2027. Silver mineralisation was reported to extend into surrounding sedimentary rocks, expanding the interpreted boundaries of the mineralised system. Managing Director Dr Matthew Cobb stated the results validate the company's model for repeated lode structures at depth and described the program as the first drilling at the historic mine in over 80 years.