File:CPRR Summit Tunnel Central Shaft.jpg
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CPRR_Summit_Tunnel_Central_Shaft.jpg (699 × 508 pixels, file size: 351 KB, MIME type: image/jpeg)
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Summary
| Description |
English: The vertical central shaft of the CPRR "Summit Tunnel" (Tunnel #6) at Donner Summit which allowed drilling and excavation of the tunnel to be carried out on four faces at once during construction of the 1,659 foot tunnel over a period of 15 months in 1866-67.
Original digital photograph taken by the uploader (Centpacrr) inside the Summit Tunnel in August, 2003. |
| Date | 18 March 2013 (original upload date) |
| Source | Transferred from en.wikipedia to Commons. |
| Author | Centpacrr at English Wikipedia |
Licensing
Centpacrr at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Centpacrr at English Wikipedia
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 2013-03-18 05:40 | 699×508× (359687 bytes) | Centpacrr | Minor tweaks. |
| 2013-03-18 05:27 | 700×509× (369468 bytes) | Centpacrr | The vertical central shaft of the [[Central Pacific Railroad|CPRR]] "Summit Tunnel" (Tunnel #6) and [[Donner Summit]] which allowed drilling and excavation of the tunnel to be carried out on four faces at once during construction of the 1,659 foot tunn... |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:59, 13 March 2016 | | 699 × 508 (351 KB) | OgreBot | (BOT): Reverting to most recent version before archival |
| 05:59, 13 March 2016 |  | 700 × 509 (361 KB) | OgreBot | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2013-03-18 05:27:29 by Centpacrr | |
| 03:18, 28 February 2016 |  | 699 × 508 (351 KB) | FastilyClone | Transferred from enwp |
File usage
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