Since 2017 FireFox has used a combination of data compilation, geophysics, prospecting, till sampling, trenching, mechanized BOT sampling, and reconnaissance diamond drilling to identify numerous promising targets at Jeesiö, and has currently prioritized the Utsamo and Kataja Belt targets. Utsamo is situated directly between Aurion’s Risti and Launi gold discovery areas, while the Kataja Belt targets area approximately two kilometres southwest from the gold-bearing quartz-sulfide vein system at Launi.

Utsamo Target: This target covers a five-kilometre-long corridor of complex faults and shears including a 2.8 km long structurally distinct zone, associated with numerous gold anomalies in till, that follows the contact between mafic intrusive rocks and metasediments. This feature is believed to be the continuation of the Sirkka Shear Zone. Base-of-till sampling has identified significant pathfinder anomalies, such as bismuth, tellurium and selenium, that are strong indications of orogenic gold. Reconnaissance drill testing has confirmed the fault zone at depth, along with narrow intervals of base metals and gold pathfinder elements associated with hydrothermal alteration.

Kataja Belt Target: Spanning more than 3km, from south to north the Kataja Belt consists of three gold prospects: Saittavaara, Katajavaara South (KJ South) and Katajavaara Hill (KJ Hill). These are apparently related to northeast-trending younger fault zones and to a major left-lateral fault zone that continues from these three prospects further towards northwest and southeast.

FireFox has found significant gold in surface and trenching samples throughout the area, including an outcrop sample of 10.5 g/t gold, a high trench grab sample of 33.6g/t gold, and in 2024 trench channel samples of 14.62 g/t gold over 2.84 metres, 2.69 g/t gold over 3.38 metres and 1.85 g/t gold over 1.69 metres in a vein zone at KJ Hill.

At Saittavaara, gold values in rock samples from the 2024 program included 3.16 g/t, 3.05 g/t, 2.61 g/t, and 2.57 g/t, extending the trend of significant gold showings to more than 1.6 kilometres.