We often inspect tree throws for artifacts. A tree throw is a bowl shaped depression that is often created when a large tree has blown over or has had its stump pulled out. This tears out soil with it creating a surface exposure for us to inspect.
This biface came from a site that was classified as an isolated find. This term means that only one artifact was observed and/or collected.
A bucket auger can be a useful tool to test for buried paleosols. An auger is a tool used for boring holes in the ground. This one has a cross handles and a rotating shaft with a bucket on the end. The bucket is placed on the ground and then the cross handles are turned. When the archaeologist is done, the auger is pulled up along with the soil that was in the bucket.
A retouched flake is a quickly made tool that has had small flakes removed to blunt, sharpen, or refine the edge of the tool. It can also be used as a scraper or a knife.