Auger for Soil Profile?
Hello! I have a slight predicament. My friends garden has a layer of clay about half a foot away from the surface of the ground. This aquatard is causing the surface soil to saturate completely with very light rainfall and snowmelt. I'd like to figure out how deep this layer of clay is before any action is taken in order to re-profile the soil. In order to do this, I need some sort of a tool to provide me a rough estimation of the depth of this aquatard. How do you suggest I go about this? Have any of you tried to use an auger? Any help is greatly appreciated! Thank you in advance :D