Icon
Name
Title
Date
Chronology
 
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2018.20.0182 (2018-07-06)Blocked doorway at southeast end of tunnel.2 Aug 2018  
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2018.20.0183 (2018-07-07)Southeast end of tunnel, with rock cut shaft above.2 Aug 2018  
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2018.20.0185 (2018-07-09)Northern line of tunnel east of 3a.2 Aug 2018  
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2018.20.0186 (2018-07-10)Tunnel east of 3a, southeast end.2 Aug 2018  
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2018.20.0187 (2018-07-11)Tunnel east of 3a.2 Aug 2018  
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2018.20.0188 (2018-07-12)Tunnel east of 3a, northwest end.2 Aug 2018  
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2018.20.0189 (2018-07-13)Full extent of tunnel east of 3a.3 Aug 2018  
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2018.20.0308 (2018-16-01)Ω, end of season, tunnel east of 3a.7 Aug 2018