The program is designed to target extensions of known mineralisation along strike and at depth as well as further resource growth at the Vanguard Camp, Indomitable Camp, Lord Nelson and Havilah.
It comprises infill and step out drilling.
Alto chairman Terry Wheeler said: “We are excited that the 10,000-metre RC drilling program is underway and we anticipate strong news flow over the next few months.
“The maiden mineral resource estimate for Havilah and Ladybird is expected shortly and with the ongoing drilling we expect a further upgrade to the company’s global mineral resource estimate later this year.
“I look forward to updating our shareholders further as we progress with our aggressive exploration strategy at the Sandstone Gold Project.”
Alto’s global mineral resource estimate is 4.9 million tonnes at 1.7 g/t gold for 261,000 ounces.
The company anticipates the maiden resource estimate for Havilah and Ladybird to be completed in the coming weeks.
Alto has also been successful in an application for a grant of up to $150,000 under round 19 of the WA Government's Exploration Incentive Scheme.
The grant will assist in funding RC and diamond drilling to test the Chance prospect and other gold in soil targets on the eastern side of the Sandstone project, within the Edale Shear Zone, in the next 12 months.
Gold in soil anomalies on the Edale Shear Zone.
Alto is well funded with total commitments of $2.6 million recently secured to fund drilling, exploration and working capital.Gold in soil anomalies.
Shares up more than 9% today to 3.5 cents.