Orosur Mining (LSE:OMI) has announced another set of encouraging drilling results from the APTA prospect at its Anzá Project in Colombia, with the latest hole providing further evidence that the high-grade gold system extends at depth.
Drill hole MAP107 intersected 135.5 metres grading 1.91 grams per tonne (g/t) gold, including a higher-grade interval of 49 metres at 4.06 g/t gold. The hole ended in mineralisation, indicating that the gold system remains open and could extend beyond the current drilling limits.
The latest results support an updated geological interpretation that suggests the deeper high-grade mineralised zones at APTA are more extensive than previously understood. As a result, Orosur has repositioned its drilling rig further east to test shallower mineralisation, with the aim of supporting a future mineral resource estimate and further expanding the project’s exploration potential.
APTA has now been tested by more than 39,000 metres of drilling and complements the recently established Mineral Resource Estimate (MRE) at Pepas, as well as ongoing exploration at the nearby El Cedro prospect. Together, these targets highlight the significant development pipeline within the Anzá Project and the opportunity to further increase the company’s resource inventory.
Management said Orosur remains fully funded to continue its expanded exploration programme, providing financial flexibility as it advances its understanding of the Aragon fault-hosted epithermal gold system and works towards defining a formal mineral resource at APTA.
About Orosur Mining
Orosur Mining Inc. is a gold exploration and development company listed on both the TSX Venture Exchange and AIM. Its flagship Anzá Project is located in Colombia’s Mid-Cauca gold belt and spans approximately 330 square kilometres through its wholly owned subsidiaries, Minera Anzá and Minera Monte Aguila. The company is advancing exploration across its three principal prospects—Pepas, APTA and El Cedro—with a focus on expanding resources and progressing future development opportunities.

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