Record Details
Chart showing location of a canal around the Cascades of the Columbia River
Oregon Digital
| Field | Value |
|---|---|
| Title | Chart showing location of a canal around the Cascades of the Columbia River |
| Relation | gov serial set 1845 |
| Date | 2005-09-20 to 2005-09-27 |
| Rights | This item is in the public domain. Acknowledgement of the University of Oregon Libraries as a source is requested. |
| Type | page |
| Format | Scanned from originals using Silverfast AI 6.0 on UMAX Powerlook III flatbed scanner. Scanned images saved as 16 bit grayscale tiffs. 6094.903 kb 8 bit - Gray Gamma 2.2 - greyscale Omnipage 14 used to OCR 8 bit tiffs and generate text files for full text access. 16 bit grayscale and 48>24 RGB color tiffs edited in Photoshop CS 8.0: cropped, rotated, reduced in size, levels adjusted, grayscale bit depth reduced to 8 and JPEGs created. |
| Description | Profile of Centre Line of Canal Chart showing location of a canal around the cascades of the Columbia River in the state of Oregon Surveyed and drawn under the direction of Major John M. Wilson, Corps of Engineers By Channing M. Bolton - Asst Engr 1877 Explanations Base of Levels assigned, as shown on Profile. Soundings are referred to same base as levels, being Elevations of the bottom at these points Cross Sections shown on Chart by Contour lines at 10 feet difference of... |
| Identifier | http://oregondigital.org/u?/wwdl,3150 |
