Alto Metals Ltd (ASX:AME) has defined a strong gold-in-soil anomaly in the vicinity of its Sandstone Gold Project in Western Australia.
A sampling program has defined a 1.5 kilometre long, southeast striking anomaly of plus-7 parts per billion (ppb) gold.
The maximum value was 228 ppb gold and 13 samples returned over 15 ppb.
READ: Alto Metals hits further high-grade gold at Sandstone Project
The Superb Anomaly, around 12 kilometres south of Sandstone township, was defined by assays from 24 samples out of 74 collected.
Alto aims to delineate a resource of at least 1 million ounces that could become the basis for re-establishing a standalone oxide and primary gold mining and milling operation.
It is possible that in the short term some of the existing deposits may be amenable to toll treatment elsewhere.
The assayed linear anomaly is obscured by iron-rich duricrust.
Gold source to be determined
It is not yet known whether the samples represent a primary gold source at depth or are alluvial in nature.
Further soil sampling and drill testing are required to determine the extent of the anomaly, which is open to the southeast.
Work program lodged
Alto has lodged a program of work for aircore drilling with the Department of Mines, Industry and Safety but is yet to be granted approval.
Alto holds about 800 square kilometres of the prospective Archaean Sandstone Goldfield, 600 kilometres north of Perth in the East Murchison Mineral Field.
Since acquiring the project in June 2016, Alto has compiled and reviewed a large legacy database of a series of focused exploration and drilling campaigns which began in late 2016.