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| Looking north. Channels ... AMS Horizontal (normal) ... Looking north. Channels. |
| Channels in bedrock, looking west ... AMS 427 Horizontal (normal) ... 9 Mar 1938 ... Channels in bedrock, looking west. |
| Channels in bedrock, looking northeast ... AMS 427 Horizontal (normal) ... 9 Mar 1938 ... Channels in bedrock, looking northeast. |
| Channels F and D from north ... AMS Horizontal (normal) ... Channels F and D from north. |
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