Guardian Metal Resources PLC (AIM:GMET, OTCQX:GMTLF) told investors it has expanded its footprint near the Pilot Mountain project, in Nevada.
The explorer announced it has acquired 59 Bureau of Land Management Lode Claims, to form the Pilot North tungsten project.
The area lies about 15 km northwest of Pilot Mountain and covers three World War II-era tungsten mines: Copper Head, Western Metals and Jasper.
Initial field work confirmed skarn mineralisation at the contact of granitic intrusions with Luning Formation limestones, it noted. Copper oxide mineralisation is visible.
Rock samples are now being analysed at a lab in Reno.
“We moved quickly to stake 100%-owned claims to form the Pilot North Project, which has highly prospective geology and a history of production, and which is located just 15 km from our flagship Pilot Mountain project,” chief executive Oliver Friesen said in a statement.
"The company's expert geological consultant will be on site before the end of the month to further evaluate the promising Pilot North prospects and assess their potential to complement the ongoing exploration and development at Pilot Mountain."