Test Units 3 and 4 are adjacent 1x1m test units placed immediately outside of the northern edge of structural features A03-558 (see Figure 6-58 and Figure 7-32) where a curved alignment of rock slabs appears to delimit a residential structure.

Figure 7-30. A02-39u3 (upper unit in photo) and u4 (lower) at basal levels. Top of photo is east.

Figure 7-31. Circular hearth (F1) in A02-39u4, level 5. Top of photo is north, unit is 1m on a side.

Figure 7-32. A02-39 "Pausa" - north, with Test Units 3 and 4, ovals, and inferred features. Compare with larger map showing ovals in Figure 6-58.

Excavations revealed that inside the curved wall feature [A06-001] was another wall consisting of two slab rocks [A06-002] floating above the depth of the six large rocks that make up A06-001. Circular features have been extrapolated from these two structures and they are shown in Figure 7-32. The circular inference of the smaller feature [A06-002] is more speculative, as only three large slab rocks were found and the rocks seem displaced.