RE:Trench vs core samples? Trenching is a cheaper alternative to drilling. It is just exposing bedrock below overburden by manpower or heavy equipment. It is a useful exploration tool in areas that have relatively shallow overburden. It can be used to trace veins and zones of mineralization along strike to get an idea of their extent. As for the results they are very impressive, they managed to trace the zone for 175 meters with some outstanding intercepts! Can’t wait for their next drill results.