Vancouver, British Columbia--(Newsfile Corp. - June 26, 2026) - Orestone Mining Corp. (TSXV: ORS) (OTC Pink: ORESF) (FSE: O2R2) ("Orestone" or the "Company") is pleased to announce results of the Phase I sampling and mapping program on the Francisca gold silver project in Salta Province Argentina. A total of 13 trenches were sampled on the South Gold Zone and 5 trenches on the North Gold Zone. In addition, reconnaissance mapping and sampling carried out along the Francisca Trend has identified two new prominent gold mineralized systems. The Tom East Zone where Trench 6B returned 21 metres of 4.45 g/t gold in colluvium, is located 120 metres east of the South Gold Zone and the Kelly Gold Zone, featuring broad zones of gold mineralized stockwork with grades of 0.24 to 0.41 g/t gold. Both zones are open in three directions. The Kelly Gold Zone is located 250 metres along strike of the South Gold Zone and is thought to be an extension of it.
OXIDE GOLD STOCK-WORK MINERALIZED TREND
The Francisca Gold Trend now covers a northwest strike length of 1500 metres where an oxide gold-silver system can be observed at surface outcropping in numerous areas; North Gold Zone, South Gold Zone, Kelly Gold Zone and the Tom East Gold Zone (stockwork, vein, breccia and epithermal vein systems). The outcropping zones are within a 500 to 1000 metre wide zone of strongly hornfels altered sediments and further defined by a 1700 metre long by 500 to 700 meter wide IP chargeability anomaly of 7.9 mV/V that appears to be related to gold-silver mineralization. Several large, strong IP chargeability anomalies measuring up to 20 mV/V indicate the potential for a larger buried sulphide mineralized gold porphyry. The oxide gold quartz limonite stock-work trend is associated with quartz feldspar porphyry intrusive dykes and intense sericite clay alteration along a NW trending fault system.
David Hottman, Chairman and CEO of Orestone Mining Corp., stated: "At the Francisca gold-silver project exploration continues to define new gold-silver targets that provide additional scale along the 1.5 km trend. Orestone employs advanced geological and geophysical techniques in exploration to cost effectively define targets with high potential that can be systematically drill tested. The Company's projects have a relatively low-cost profile to hold and explore and are suitable for exploration year-round."
Francisca North and South Gold Zone Sampling
Mapping, and a 675 rock chip sampling program, on the Francisca Property in March - April has defined a strongly, gold-silver mineralized, quartz-limonite stockwork system comprising the South Gold Zone. The stockwork system has been defined over a strike length of 400 metres and width from 30 to 75 metres, averaging 50 metres. Host rocks in the zone are strongly sericite - limonite - clay altered hornfels and porphyry dykes. The average grade of 1.04 g/t gold and 7.80 g/t silver is from 332 samples taken from 13 trenches but excludes 5 high grade vein intervals. The South Gold Zone narrows on the southern end into three high grade veins from 0.89 metre to 2.15 metres wide grading 5.12 to 8.77 g/t gold and 23 to 83 g/t silver; these veins extend under an alluvium covered arroyo leading toward the Kelly Gold Zone, 250 metres to the southeast. Sampling in the North Gold Zone did not return value/length intervals of economic interest at this time although the zone still remains prospective.