File:Grand Canyon Nat. Park Trail Crew Inner Canyon 1125 (7309570218).jpg
![File:Grand Canyon Nat. Park Trail Crew Inner Canyon 1125 (7309570218).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Grand_Canyon_Nat._Park_Trail_Crew_Inner_Canyon_1125_%287309570218%29.jpg/800px-Grand_Canyon_Nat._Park_Trail_Crew_Inner_Canyon_1125_%287309570218%29.jpg?20200420175005)
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Summary
[edit]DescriptionGrand Canyon Nat. Park Trail Crew Inner Canyon 1125 (7309570218).jpg |
During February of 2012 Grand Canyon's Trail Crew rebuilt a 100 foot section of wet stone masonry wall just above "The Box" in Bright Angel Canyon. NPS Photo by Kristen M. Caldon The North Kaibab Trail runs very closely to Bright Angel Creek, which is subject to seasonal flooding. In order to protect the trail and the trans-canyon pipeline in which the trail harbors, there are miles of wet stone walls to support trail structure from erosion. This particular section of trail took a crew of 8 people about 14 days to complete. Rock materials were mined from local sources, and all mortar, mixers and other supplies were flown to the site by helicopter. |
Date | |
Source | Grand Canyon Nat. Park Trail Crew Inner Canyon_1125 |
Author | Grand Canyon National Park |
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This image was originally posted to Flickr by Grand Canyon NPS at https://flickr.com/photos/50693818@N08/7309570218. It was reviewed on 20 April 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
20 April 2020
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current | 17:50, 20 April 2020 | ![]() | 4,000 × 3,000 (6.52 MB) | Killarnee (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot G9 |
Exposure time | 1/160 sec (0.00625) |
F-number | f/8 |
ISO speed rating | 400 |
Date and time of data generation | 10:36, 5 February 2012 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 10:36, 5 February 2012 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 10:36, 5 February 2012 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 7.3125 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |