Continued to work on trench 13 which is currently a 2x2. There maybe a circular wall that is two lines deep and high. We decided to expand the trench to determine if this is indeed architecture or if there is something else going on. This wall appears to run parallel to the rocks that run behind the trench. However, these rocks do not seem to penetrate the subsurface, and instead are sitting on top of the soil. It is very difficult to determine which rocks are actually bedrock, architecture, or rocks sitting on the surface from the ground.