The hole was drilled to confirm the prospect’s geological model and provide samples for preliminary metallurgical test work.
Highlighted intervals include: 40 metres at 3.6 g/t gold from 61 metres, including 5 metres at 8.7 g/t from 61 metres; 19 metres at 4 g/t from 69 metres; and 7 metres at 3 g/t from 94 metres.
Individual 1-metre assays include: 1 metre at 19.2 g/t from 63 metres; 1 metre at 15.1 g/t from 71 metres; and 1 metre at 11.9 g/t from 79 metres.
Alto plans to build on the work completed over the past 24 months through RC and diamond drilling at the Vanguard and Indomitable prospects to define the extent of the mineralised structures.
The company will also undertake aircore drill-testing of soil and laterite gold geochemical anomalies.
Resource evaluation work is progressing and Alto plans to complete maiden mineral resource estimates for the Ladybird, Havilah and Sandstone North prospects using existing data.
The work will comprise geotechnical drilling, bulk density measurements and metallurgical test work where required to convert gold mineralisation into a resource.
Alto holds about 800 square kilometres of prospective ground in the Archaean Sandstone Goldfield in the East Murchison mineral field of WA.
Since acquiring the project in 2016, the company has compiled and reviewed a large legacy database ahead of a series of focused exploration and drilling campaigns.
Alto’s goal is the delineation of a plus-1 million-ounce JORC mineral resource that could become the basis for the re-establishment of standalone oxide and primary gold mining and milling operations.