Black Canyon Wandanya Extension Drilling Intersects High-Grade Iron and Manganese Over 1.8km of Strike

Anjali Anand

04 November 2026 10:15 AM AEDT

Black Canyon Wandanya Extension Drilling Intersects High-Grade Iron and Manganese Over 1.8km of Strike

Image Source: Krish Capital Pty Ltd

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Black Canyon Limited (ASX:BCA) has released assay results from expansion drilling to the north and south of the Wandanya maiden Mineral Resource Estimate, with the northern extension program delineating consistent iron mineralisation over 1.8km of strike and manganese mineralisation over 1km of strike, including intervals of up to 6m at 56.5% Fe and 4m at 24.7% Mn.

Key Points

Northern extension drilling delineated iron mineralisation over 1.8km of strike and manganese mineralisation over 1km of strike north of the Wandanya maiden MRE footprint
Significant iron results include 6m @ 56.5% Fe from 28m including 3m @ 61.3% Fe from 31m in hole WDRC1044, and 5m @ 58.1% Fe from 26m in hole WDRC1032
Manganese intervals include 4m @ 24.7% Mn from 39m including 2m @ 28.9% Mn from 40m in hole WDRC1037, and 3m @ 27.4% Mn from 25m including 1m @ 35.5% Mn from 25m in hole WDRC1036
The wide-spaced RC drill program completed in September 2026 totalled 151 holes for 4,804m at an average depth of 32m
Wandanya Scoping Study is progressing and due for completion in December 2026

Wandanya Northern Extension Drilling Results

The RC drill program, completed in September 2026, evaluated 2.8km of strike to the north and 1.4km of strike to the south of the Wandanya maiden Mineral Resource Estimate. Drill lines in the northern zone were variably spaced between 100m and 400m apart, with holes spaced between 50m and 100m. The program intersected multiple 3m to 5m thick intervals of iron mineralisation, with overall iron grades ranging between 55% and 60% Fe and consecutive hematite-rich intervals often exceeding 60% Fe. Several drill cross-sections remain open up-dip and down-dip due to the wide-spaced drill pattern. To the south, iron intersections were typically less than one metre thick and did not persist down-dip.

Manganese Mineralisation Distribution and Grades

Manganese mineralisation intersected in the northern zone showed variable distribution over approximately 1km of strike. The mineralised horizon ranged between 1m and 4m in thickness, with manganese grades between 15% Mn and 35% Mn, typically in the low to mid-twenties. Notable manganese results include 4m @ 24.0% Mn from 26m and 4m @ 20.7% Mn from 32m in hole WDRC1043, and 3m @ 23.8% Mn from 11m including 1m @ 33.1% Mn from 11m in hole WDRC1047. Multiple seams of manganese oxide mineralisation were identified in drill results from the northern zone, in contrast to the single manganese horizon typically intersected within the existing Wandanya resource.

Gravity Survey and Scoping Study Progress

A detailed gravity survey extending over 38km² has been completed, with a number of shallow and deeper anomalies tested by drilling. The survey was co-funded by the Western Australian Government's Exploration Incentive Scheme. The company disclosed that future drill programs will look to reduce drill line spacing through infill between lines, targeting either 50m x 100m or 200m spacing to understand geological and mineralisation continuity. The Wandanya Scoping Study is progressing and is due for completion in December 2026. The company's existing maiden global manganese Mineral Resource estimate stands at 23.6Mt at 25.8% Mn, with the maiden global iron Mineral Resource estimate at 12.5Mt at 54.9% Fe.

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