ΟΟ-15
Levels ... ΟΟ-15
F1. Southwest Room. F4; F3; C12 ... ΟΟ-15 2801 ... May 19-Jun 15 1949
ΟΟ-15 2802, 2803
Hole in bedrock on west side of C3. Before refilled to level at east ... AMS Horizontal (normal)
Drain 1 looking northwest. Indicated with (x) is the conglomerate block and Well 7 at foreground ... AMS Horizontal (normal)