Felix Gold (ASX:FXG) started field-based exploration and development at its Treasure Creek project in Alaska to generate data for a feasibility study into a near-term antimony production opportunity, according to a Wednesday filing with the Australian bourse.

Trenching and drilling are underway, and environmental studies are in progress, the filing said.

The company is targeting a development decision that could enable first concentrate production by the fourth quarter of the year, per the filing.