Central Yilgarn Project

Located within an underexplored region of the world-renowned Yilgarn Craton, approximately 190 km to the northwest of Kalgoorlie and 160 kms southwest of Leonora. The project area covers an area of over 650 km2, and over approximately 65 km of strike, along the Yerilgee and Evanston greenstone belts

The tenements present a rare exploration play over multiple greenstone belts with proven mineralisation potential for gold, lithium and Cu-Zn-Ag massive sulphides. With several high-grade gold targets identified and minimal follow up to date, the exploration potential is significant.

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Yerilgee Greenstone Belt

The Yerilgee Belt hosts a series of large-scale gold anomalies within structurally complex settings.

A structurally favourable dome setting with high magnesium basalts, ultramafics and banded iron formations. Previous drilling returned high-grade gold intercepts, including:

  • 17m @ 4.1g/t Au and 28g/t Ag (incl. 4m @ 14.9g/t Au) at Chicken Little
  • 24m @ 1.6 g/t Au from 0m, including 9m @ 3.3 g/t Au from 12m at Chicken Little
  • 16m @ 1.9g/t Au from surface (incl. 4m @ 8.5g/t Au) at Snowflake
  • 9m @ 2.6g/t Au (incl. 3m @ 7.1g/t Au) at Megatron

Despite early success, only 12 RC holes have been completed at T6, leaving multiple zones open along strike and at depth.

Located along a major regional structure with coincident magnetic features and strong pathfinder geochemistry. Initial RC drilling intersected:

  • 17m @ 0.7g/t Au (incl. 8m @ 1.2g/t Au)
  • 10m @ 0.8g/t Au (incl. 1m @ 6.0g/t Au)
  • 27m @ 0.6 g/t Au from 6m, including 2m @ 2.2 g/t Au, and 1m @ 9.0 g/t Au

These early-stage results confirm the presence of a gold system within a folded BIF package, intruded by felsic porphyry. Follow-up drilling is planned.

A large, untested anomaly measuring 20km by 2km, defined by extensive gold and pathfinder elements. Surface sampling has returned assays up to 233g/t Au, yet the area remains undrilled. T11 represents a compelling greenfields target.

Evanston Greenstone Belt

The Evanston Belt forms part of the 2.9-billion-year-old Western Yilgarn succession and hosts multiple gold and lithium targets.

Situated along the regional Evanston Shear Zone, this camp contains extensive soil anomalies and historic workings. Drilling has returned:

  • 15m @ 1.5g/t Au (incl. 3m @ 6.7g/t Au) at Viper
  • 4m @ 3.8g/t Au in shallow RAB drilling, not yet followed up

The southern extension and nearby historic workings at Viper South remain untested by RC drilling.

Located within a large north-plunging syncline, T2 hosts multiple structural targets with shallow gold workings. Notable results include:

  • 48m @ 0.6g/t Au (incl. 21m @ 1.3g/t Au) at Leghorn
  • 7m @ 0.79% Cu and 535ppb Au in massive sulphide from the same zone

Additional targets include the Erk anomaly (a 3km gold-in-soil trend with nugget patches) and Honey, a shallow working with visible gold in altered ultramafic rocks.

Multiple pegmatite swarms with anomalous lithium, caesium and tantalum geochemistry have been identified across the Evanston Belt, highlighting the project’s multi-commodity upside.

Evanston Greenstone Belt

Catalina has prioritised follow-up RC drilling across high-grade targets at T6, T8, Viper, and T2, with several walk-up prospects and open anomalies poised for advancement in 2025. The Central Yilgarn Project represents a rare opportunity to uncover new gold camps within a vastly underexplored, geologically rich domain.