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Re: Engineering Marvel: loops GN Horseshoe Tunnel
Author: WebDigger
Date: 02-15-2016 - 22:49

Graham Buxton Wrote:
-------------------------------------------------------
> According to this page, [www.trailvolunteers.org] the GN Horseshoe Tunnel made a 180-degree turn within the mountainside, with bridges on either end of the tunnel each adding more degrees to the loop.

Thank You, Graham. Here's more:

Another map: [www.irongoat.org]. Horseshoe Tunnel is at 1717, near the left center of the map.

A book: [www.irongoat.org]. The PDF document is large (~25 MB), and seems to have been created by scanning printed pages; it can't be searched easily.

Wikipedia: [en.wikipedia.org]

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Subject Written By Date/Time (PST)
  Engineering Marvel, 101 Year old- "Williams Loop" JohnSutter 02-14-2016 - 16:59
  Re: Engineering Marvel, 101 Year old- "Williams Loop" BN Oly 02-14-2016 - 17:15
  Re: Engineering Marvel, 101 Year old- "Williams Loop" engr 02-14-2016 - 17:37
  Re: Engineering Marvel, 101 Year old- "Williams Loop" stash 02-14-2016 - 21:54
  Re: Engineering Marvel, 101 Year old- "Williams Loop" Hopkins 02-15-2016 - 06:41
  Re: Engineering Marvel, 101 Year old- "Williams Loop" mook 02-15-2016 - 07:01
  Re: Engineering Marvel, 101 Year old- "Williams Loop" steve thompson 02-15-2016 - 07:57
  Re: Engineering Marvel, 101 Year old- "Williams Loop" Bruce Butler 02-15-2016 - 08:30
  Re: Engineering Marvel, 101 Year old- "Williams Loop" Fred 02-15-2016 - 09:31
  Re: Engineering Marvel, 101 Year old- "Williams Loop" tundraboomer 02-15-2016 - 09:43
  Re: Engineering Marvel, 101 Year old- "Williams Loop" Craig Tambo 02-15-2016 - 10:23
  Re: Engineering Marvel, 101 Year old- "Williams Loop" crmeatball 02-15-2016 - 12:02
  Re: Engineering Marvel, 101 Year old- "Williams Loop" mook 02-15-2016 - 09:45
  Re: Engineering Marvel, 101 Year old- "Williams Loop" WebDigger 02-15-2016 - 10:18
  Re: Modoc line, Likely Loops ES 02-15-2016 - 13:47
  Re: Engineering Marvel: loops Argonaut 02-15-2016 - 14:09
  Re: Engineering Marvel: loops WebDigger 02-15-2016 - 15:56
  Re: Engineering Marvel: loops Dan 02-15-2016 - 17:52
  Re: Engineering Marvel: loops Graham Buxton 02-15-2016 - 19:48
  Re: Engineering Marvel: loops GN Horseshoe Tunnel Graham Buxton 02-15-2016 - 20:08
  Re: Engineering Marvel: loops GN Horseshoe Tunnel mook 02-15-2016 - 21:58
  Re: Engineering Marvel: loops GN Horseshoe Tunnel WebDigger 02-15-2016 - 22:49
  Re: Engineering Marvel: loops GN Horseshoe Tunnel Dan 02-16-2016 - 10:21
  Re: Engineering Marvel: loops GN Horseshoe Tunnel OT Local 02-16-2016 - 11:29
  Re: Engineering Marvel: loops Chris Walker 02-16-2016 - 12:23


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