Cleaned and removed some of the stones along south baulk of T02b. Became evident that soil behind those stones matched soil in north baulk of T02, not the silica soil of locus 3 in most of T02b. So this light tan loam is now locus 6.
To get a better feel for wall in western E.B. portion of T02 above bedrock, we're expanding trench south for 40cm.
Also removing the baulk between T02 and T02c to get a better view of wall in both trenches. There a large number of large and small stones under the baulk that may be construction.
Rained out after lunch.