• (p. pr. & vb. n.) of Trench
a means of exposing and sampling near-surface geology by digging a trench.
Laying down deep channels in powder while skiing or snowboarding.
A trench is invaluable in confirmining the bedrock source of an anomaly, be it geological, geochemical, or geophysical. Trenches and pits also provide large samples for more accurate grade estimates as well as for undertaking pilot processing plant test work to determine likely recoveries.