Today I began to clean the chamber soil, namely locus 7 in the western chamber of the trench. I measured the level of the four corners and center of this locus. All of the dirt from this locus has been screened and several obsidian products and potteries have been discovered from the soil.
The construction of this tomb chamber is not clearly exposed yet. The northeastern corner of the wall is relatively clear, which is built by face stones. The dirt beneath the two “wall-like” boulders on the two side of the chamber kept recessed in, the phenomenon of which is not optimistic because it may indicate that this two stones may be capstones instead of walls and the chamber would be much larger than predicted.