.bk J03 .fl R721mO.j .fd aggregate log from a501 to a502 .fn edited by jW on R721 .ei mO .ed R721 .rd R721 .ri mO a 501 106 apron f532,f556,f10 The stepped stone installation in J03, that we call the Second Apron, is the continuation of this structure which was discovered in J02 and J03 ( k101 ). This part of the second apron was assigned the feature number f532. However it has become clear that the part of the second apron in k107 is different from the part in k2. In k107 the stone structure still seems to be stepped while in k2 it obviously is not ( f556 ). 502 107 w f591,f569,f11 Large stones situated all along k101,k1,k107 from E to W, on the south side of f10,f532,f556; It's a group of stones belong to the revetment wall of the temple terrace ( f591,f569,f11 ) , seeing that they seem to be far from the upper apron stones and at a lower level.