From east. 1=Building C. 2=Cover Slab of Great Drain. 3=Late Foundation ... AMS 1523 Horizontal (normal) ... 10 Apr 1937
From northeast. After clearing.1=Building C. 2=Cover Slab of Great Drain. 3=Late Foundation ... AMS Horizontal (normal)
Mixed ... E. Vanderpool ... 1371 1572 ... 1933, 1935, 1937
Homer A. Thompson ... An overview of the work carried out in the area of the Tholos in 1937. The 6th century B.C. accumulation was stripped away revealing a complex of foundation walls, of limestone polygonal construction, ... 5 Apr 1937-21 Jul 1947