There's a creek I do some dredging on in Southern Oregon. There's good gold, but like everyone I"m allways looking for something better. Anyways..there is a good sized bench on a inside bend, that I wanted to do some sampling on. There is varying levels of topsoil, I know for sure. It has plenty of old growth trees, so I know it hasn't been worked to much. What I was thinking was drilling some test holes to see how deep bedrock is, and even more if there is gold. What I'm looking for is something that I can add lengths to go deeper if I wish. A 3point style auger that hooks onto a tractor is out of the question due to location. Does anyone have any suggestions? Thanks.