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Re: Cascade Tunnel Question
Author: dan
Date: 12-22-2009 - 19:40

I'm curious - my understanding is that the mid-point bore was filled in when construction was complete. I've seen a couple of suggestions that it be a vent. Is it plugged or isn't it? ANyone know for sure??

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Subject Written By Date/Time (PST)
  Cascade Tunnel Question Tom Rawson 12-21-2009 - 17:13
  Re: Cascade Tunnel Question LWBaxter 12-21-2009 - 19:53
  Re: Cascade Tunnel Question George Andrews 12-21-2009 - 20:01
  Re: Cascade Tunnel Question Jack Williams 12-21-2009 - 20:59
  another option blank 12-21-2009 - 23:29
  Re: Cascade Tunnel Question George Andrews 12-22-2009 - 11:07
  Re: Cascade Tunnel Question Jack Williams 12-22-2009 - 12:01
  Re: Cascade Tunnel Question BERG 12-22-2009 - 12:21
  Re: Cascade Tunnel Question - answers for Jack George Andrews 12-22-2009 - 15:23
  Re: Cascade Tunnel Question - answers for Jack mook 12-22-2009 - 18:23
  Re: Cascade Tunnel Question dan 12-22-2009 - 19:40
  Re: Cascade Tunnel Question George Andrews 12-23-2009 - 13:20
  Re: Cascade Tunnel "deep underground laboratory" Graham Buxton 12-23-2009 - 17:32
  Re: Cascade Tunnel "deep underground laboratory" Martin Burwash 12-28-2009 - 19:52
  Re: Cascade Tunnel "deep underground laboratory" HUTCH 7.62 11-12-2013 - 23:45


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