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Highlights
- Glenstar Minerals has completed Phase 1 reverse circulation drilling at the Wildhorse Project in Nevada.
- The company drilled six holes at the Rattlesnake Zone in addition to four previously reported holes at the Coca Cola Zone.
- Visual observations identified quartz veinlets, oxide minerals and alteration across multiple drill intersections.
- Glenstar has increased planned drilling from 3,500 feet to 4,300 feet following field observations during the campaign.
- Field work suggests that the Rattlesnake Zone may form part of a larger polymetallic system.
Glenstar Minerals Inc. (CSE:GSTR) has completed its initial reverse circulation drilling campaign at the Wildhorse Project in Mineral County, Nevada. In line with the development, the company’s shares climbed 8.93% to CAD0.30 on May 13, 2026.
Investor attention centred on the completion of six reverse circulation drill holes at the Rattlesnake Zone, adding to four holes previously drilled at the Coca Cola Zone. The drilling formed part of the company’s Phase 1 exploration program first announced in April.
The latest campaign focused on testing the down-dip extension of mineralization located between 85 metres and 110 metres east of historical workings at the Rattlesnake Zone.
Alteration zones identified
All the six holes intersected intervals of alteration within strongly foliated meta-sedimentary host rocks. Quartz veinlets and visual oxide mineralization were identified near contacts with feldspar porphyry intrusive rocks.
The company noted that mineralization styles were observed both at shallow depths and between 100 metres and 150 metres down hole. Hole RTSRC-3 and hole RTSRC-6 reportedly displayed quartz veinlet development from surface to depths of 25 metres.
The drilling targeted what the company believes could represent the core of a high-grade polymetallic system associated with historical mining activity in the district.
Visual observations during drilling also prompted the company to expand the overall drilling program from an originally planned 3,500 feet to 4,300 feet.
Focus turns to assay results
Project Geologist and Exploration Manager Bob Marvin stated that the drilling campaign progressed as expected and intersected area-wide occurrences of poly sulfide mineralization in the Rattlesnake Zone.
The company indicated that laboratory assay results will now play a key role in confirming the extent and grade of mineralization observed visually during drilling.
Field observations from the initial program also suggested that the mineralized zone could extend across a broader area than originally interpreted.
Wildhorse project background
The Wildhorse Property spans 89 mineral claims covering approximately 1,780 acres in Mineral County, Nevada. The project was initially identified following a review of historical exploration records, including archived field examination notes from the Anaconda Company dating back to 1975.
The property hosts historical workings believed to date from the late 1800s and early 1900s. Geological assessments have identified several east-dipping mineralized zones across the project area.
Earlier field sampling returned grades exceeding 1 gram per tonne gold, 1% copper and 6,100 parts per million antimony from quartz veinlet zones. Glenstar also reported the presence of bismuth and tungsten in outcropping zones, which it believes may point to an intrusive-related polymetallic system.
With Phase 1 drilling now complete, focus is expected to shift toward upcoming assay results from the Wildhorse Project, which could provide further insight into the scale and continuity of mineralization observed across the Rattlesnake Zone during the initial drilling campaign.
