Rio Grande Resources to Conduct High-Resolution Airborne Survey at Winston Gold/Silver Project, New Mexico

Executive Summary

• Rio Grande Resources has engaged Precision GeoSurveys Inc. to conduct a high‑resolution airborne magnetic survey covering the entire 19.2 km² Winston Gold‑Silver Project.
• The survey follows recent surface sampling that returned up to 41.2 g/t Au and 1,435 g/t Ag, confirming a ~2 km north‑south mineralized corridor.
• Data will be used to refine structural models, prioritize drill targets, and guide future ground validation work.

Key Details

• Survey Scope: 100 % of claim blocks (19.2 km²) at the Winston project, New Mexico.
• Survey Parameters:
• Primary lines – 50 m spacing, 090°/270° orientation, 30 m flight height, 123 lines → 384 km total.
• Tie lines – 500 m spacing, 000°/180° orientation, 7 lines → 43 km total.
• Total planned line length: 427 km.
• Schedule: Survey to commence in late February 2026, weather‑dependent.
• Recent High‑Grade Results (Feb 19 2026):
• Gold up to 41.2 g/t Au.
• Silver up to 1,435 g/t Ag.
• Confirms a ~2 km structurally controlled mineralized corridor.
• Exploration Objectives:
• Map fault architecture and concealed splays beneath cover.
• Identify lithological contacts, intrusive features, and structural offsets.
• Produce total magnetic intensity and derivative maps for integration with existing surface mapping, channel sampling, and rock‑chip assays.
• Target Prioritization Criteria:
• Alignment with high‑grade surface mineralization.
• Structural continuity along the corridor.
• Evidence of dilation zones or structural complexity.
• Favorable geometry for drill testing.
• Next Steps:
• Integrate magnetic data with existing datasets to refine exploration model.
• Conduct targeted ground validation and detailed structural mapping.
• Prepare a prioritized list of structurally coherent targets for future drilling.

Notable Quotes

“Airborne geophysics is a powerful tool for mapping structures beneath surface cover, and the data should help us better define the fault architecture across the property and refine priority targets.” – Jason Barnard, President & CEO, Rio Grande Resources.