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| Modern walls in middle ... AMS 231 Horizontal (normal) ... 26 Jun 1931 |
| Water channel south of mouth of "Cave", from east ... AMS 241 Horizontal (normal) ... 27 Jun 1931 |
| North end along rectangular rock wall ... AMS 249 Horizontal (normal) ... 29 Jun 1931 |
| Northeast corner of "dig" ... AMS 249 Horizontal (normal) ... 29 Jun 1931 |
| Cornice block ... AMS 296 Horizontal (normal) ... 7 Feb 1931 |
| North dike, south face ... AMS 296 Horizontal (normal) ... 7 Feb 1931 |
| Northern part, from the east ... AMS 100 Horizontal (normal) ... 15 Jun 1931 |
| Central east, from the west ... AMS 100 Horizontal (normal) ... 15 Jun 1931 |
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