Cosa Resources has started diamond drilling at its Ursa Uranium Project in the Athabasca Basin, Saskatchewan.

This drilling work aims to follow up on significant zones of sandstone alteration and geochemical enrichment identified during previous exploration.

The current drilling programme at Ursa project consists of up to 4,000m of diamond drilling. The focus is on the Kodiak target area, building on the winter programme's findings, and the Grizzly target area, where historical drilling revealed strongly anomalous uranium geochemistry.

The programme also includes testing areas identified by ANT.

At the Kodiak target, the drilling follows a broad zone of pervasive alteration intersected by the previous drill-hole UR24-03.

The Grizzly target area has been upgraded based on winter electromagnetic survey data and historical drilling results, with historical drill-holes indicating significant alteration and geochemistry.

Cosa Resources president and CEO Keith Bodnarchuk said: “Over the past 12 months the team has progressed Ursa from a high upside and severely underexplored project to one that has been strategically advanced by modern geophysics and is ready for more focused drill testing.

“Our efforts have produced ten key target areas including the first follow-up drill targets at Kodiak and Grizzly.

“Identifying multiple geologically derived drill targets early in Cosa’s exploration tenure at Ursa is a major testament to the hard work and dedication put forth by the technical team and to the prospectivity of the Ursa Project overall.”

Completed earlier this year, the ANT survey covered a 27km conductive trend and is expected to produce a 3D model of seismic velocity.

This model could highlight zones of alteration and structure associated with uranium deposits in the basin. Results and models from the ANT survey are anticipated in September 2024.

Cosa Resources exploration vice-president Andy Carmichael said: “We expect initial ANT results will assist in prioritisation of targets along the 27km of conductive strike length covered by the survey and to help guide follow-up of our winter drill results at Kodiak.”

In July 2024, Cosa agreed to acquire two mineral claims in the Athabasca Basin from Skyharbour Resources.