Field traverse at Batu Hijau, Sumbawa Island, Indonesia  -  Following an office briefing explaining the traverse, the group went into the field to study indications of alteration and mineralisation remote from the deposit   - Left: Edi Prio (pointing), aided by Geological Superintendant Arif Perdanakusumah (right) explains what we are to see over plans.   Lower left and right: In the field.

Photographs by Mike Porter