The Braeside project 129km east of Marble Bar comprises the historical Ragged Hills mining centre where multiple small mines reportedly operated from 1925 to 1967.

Assuming a three month due-diligence option progresses positively, Rumble can earn 70% by spending $1.5 million, with vendor Maverick Exploration free carried to completion of a feasibility study and decision to mine.

Keillor is ex-Resolute and Independence, and was involved in the initial targeting of the multi-million ounce Tropicana gold discovery and a number of other significant finds.

Keillor was appointed as a technical director at Rumble in November.

Braeside is said to contain high grade poly-metallic mineralisation over 30km of strike with dominant galena and associated sphalerite and chalcopyrite.

Mineralisation at the Ragged Hills mine is up to 4.2m wide in steep dipping fault/shears, while mineralised breccia/stockworking up to 50m in width is reported at Gossan Hill.

Rumble started the year with about $A1 million cash.

Shares in Rumble were up more than 15% to 3c in late morning trade, capitalising the company at $7.5 million.

The stock spent much of 2016 trading between 1.4-1.8c, though it has been on the rise since Keillor’s appointment.

Market consensus has had zinc as one of the favoured commodities in recent time.