It was found at 2144.979. It was at 111 cm of the southern wall of the structure and at 90 cm of the western wall of the structure.
In May 2014 Lori Khatchadourian added the b designation to this labcode when the Gorges folks discovered the duplication with another entry with this same labcode. Clearly an error, and the only way to sort out which sample is which is to inspect the collection bags and see if the elevations were noted there.