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| Preservation of Great Drain ... AMS Horizontal (normal) ... Preservation of Great Drain |
| Preservation of Great Drain ... AMS Horizontal (normal) ... Preservation of Great Drain |
| Preservation of Great Drain ... AMS Horizontal (normal) ... Preservation of Great Drain |
| Great Drain looking east ... AMS Horizontal (normal) ... Great Drain looking east. |
| Great Drain looking southeast ... AMS Horizontal (normal) ... Great Drain looking southeast. |
| Great Drain looking west ... AMS Horizontal (normal) ... Great Drain looking west. |
| Great Drain, looking east ... AMS Horizontal (normal) ... Great Drain, looking east. |
| Great Drain, looking west ... AMS Horizontal (normal) ... Great Drain, looking west. |
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