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| Great Drain below with cover slab; above, "bridge block", earth and tumbled breccia blocks ... north Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
| Great Drain with east-west retaining wall and tumble behind and above ... south Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
| East-west retaining wall over Great Drain with tumble above ... southwest Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
| Great Drain below with cover slab; above, "bridge block", earth and tumbled breccia blocks ... AMS north Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
| Great Drain with east-west retaining wall and tumble behind and above ... AMS south Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
| East-west retaining wall over Great Drain with tumble above ... AMS southwest Horizontal (normal) ... 14 Apr 1948 ... ΠΠ |
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