S2 Resources (ASX:S2R) completed its initial seven-hole reconnaissance drilling program and expanded the regional gravity survey at its Warraweena project in New South Wales, according to a Friday filing with the Australian bourse.

The program aimed to characterize six initial geophysical targets exhibiting various styles of gravity and magnetic anomalies, which are obscured by younger rocks and transported alluvium in the Darling River system, the filing said.