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Highlights
- The company has commenced maiden reverse circulation (RC) drilling at the Evanston project.
- The Phase 1 drilling program across the Evanston and Yerilgee projects involves approximately 7,760m of RC and aircore (AC) drilling across priority targets.
- Approximately 5,760m of RC drilling is planned at Evanston before Christmas, targeting structural and geochemical anomalies.
- Following drilling at Evanston, reverse circulation/aircore drilling will commence at Yerilgee.
Catalina Resources Limited (ASX:CTN) has initiated its Phase 1 drilling campaign at the Evanston and Yerilgee gold projects. A total of approximately 7,760m of combined RC and AC drilling is planned across both projects.
The primary goal is to assess the strike and depth potential of the deposits, explore structural corridors and identify significant new intersections. To ensure a steady flow of data, the exploration team will employ one-metre sampling and rolling assay submissions, enabling the prioritisation of follow-up drilling.
RC Drilling Program Underway at Evanston
At Evanston, 36 RC drillholes for a total of approximately 5,670m, are designed to explore and evaluate priority gold targets along the broader Evanston trend. Drilling is expected to be finalised by late December 2025.
Phase 1 aims to build on previously reported mineralisation and expand the company’s understanding of the project's potential. Key areas targeted in the program include the Leghorn, Viper South, and T1B prospects.
Target Areas and Historical Results
Leghorn Prospect (5 drillholes): Previous RC drilling returned numerous +1 g/t Au intercepts and mineralisation remained open to the north. A notable intercept from previous drilling includes-
- 48m @ 0.67g/t Au from 27m including 21m @ 1.13g/t Au from 54m and 3m @ 2.28g/t Au from 63m
- 7m @ 0.79 % Cu and 535 ppb Au in massive sulphide from the same zone
Viper South Prospect (18 Drillholes): The prospect is located approximately 10 kilometres along strike from the Evanston Gold Mine, an area already known for significant gold-in-soil anomalies and historical mining activity. Historical drilling results include
- 18m @ 1.18 g/t Au from 16m, including 4m @ 3.8 g/t Au
- 15m @ 1.5 g/t Au from 12m, including 3m @ 6.7 g/t Au from 12m
- 33m @ 0.3 g/t Au from surface, including 3m @ 0.9 g/t Au from 27m
T1B Prospect (13 drillholes): The T1B prospect is located approximately 3 kilometres along strike from the Evanston Gold Mine. Analysis of soil samples revealed a coherent gold anomaly, peaking at 610 ppb Au. The Phase 1 drilling program will test deeper mineralisation below the geochemical anomaly and will test structural and lithological controls.
Next Steps: Transitioning Drilling to Yerilgee Project
Following the completion of drilling at Evanston, the company will shift its focus to the Yerilgee project. Drilling at Yerilgee will target additional gold-in-soil anomalies and Banded Iron Formation (BIF)-hosted mineralisation, which has previously delivered notable results. These include 17m @ 4.1 g/t Au and 28.0 g/t Ag from 53m, including 4m @ 14.9 g/t Au and 72.2 g/t Ag from 54m.
RC and AC drilling at Yerilgee will focus on the Snowflake, Chicken Little and T8 prospects.
CTN shares were trading at AUD 0.004 per share at the time of writing on 1 December 2025.
