In SLT4 going down in south half of trench in search of bedrock. Changed from locus 3 to locus 8 between a line of stones that may be architectural, but still not sure. In any case locus 8 is quite ashy but same light gray color as locus 3. Took a good radiocarbon sample from this locus. Nearby and just above bedrock we uncovered a discrete burn feature designated locus 9 which also produced some good radiocarbon. In SLT5 we started locus 3 when l started to notice an increase in clay content in soil suggesting we're getting close to floor. We're about even with SLT1 floor. Oddly a large stone basin is on its side on the floor in the western side of the trench.