File:West portal of Tunnel 23, view to north, 135mm lens. Concrete foundation in right foreground was from 'telltale,' a simple post-and-beam frame that spanned the tracks with HAER CAL,31-APGT.V,2-3.tif
Original file (5,000 × 3,993 pixels, file size: 19.04 MB, MIME type: image/tiff)
Captions
Summary
editPhotographer |
Ed Anderson |
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Title |
West portal of Tunnel 23, view to north, 135mm lens. Concrete foundation in right foreground was from 'telltale,' a simple post-and-beam frame that spanned the tracks with lengths of rope suspended from the beam. In the days when brakemen were required to be on, and walk along, the tops of freight cars to set brakes, the 'telltale' ropes would strike the unwary to warn of the tunnel ahead, allowing them to lie flat and avoid being struck by the tunnel portal. - Central Pacific Transcontinental Railroad, Tunnel No. 23, Milepost 132.69, Applegate, Placer County, CA |
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Depicted place | California; Placer County; Applegate | ||
Date |
1997 date QS:P571,+1997-00-00T00:00:00Z/9 |
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Dimensions | 4 x 5 in. | ||
Collection |
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Accession number |
HAER CAL,31-APGT.V,2-3 |
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Credit line |
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Source | https://www.loc.gov/pictures/resource/hhh.ca2396.photos.315536p/ |
Camera location | 39° 00′ 02.99″ N, 120° 59′ 29″ W | View this and other nearby images on: OpenStreetMap | 39.000830; -120.991390 |
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Licensing
editPublic domainPublic domainfalsefalse |
This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. |
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:59, 6 July 2014 | 5,000 × 3,993 (19.04 MB) | Fæ (talk | contribs) | GWToolset: Creating mediafile for Fæ. HABS 05 July 2014 (401:500) |
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Metadata
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Author | Library of Congress |
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Width | 5,000 px |
Height | 3,993 px |
Compression scheme | Uncompressed |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 13 |
Horizontal resolution | 1,000 dpi |
Vertical resolution | 1,000 dpi |
Data arrangement | chunky format |
File change date and time | 14:56, 9 November 2001 |