Record Details
Chart of the Mouth of the Columbia River
Oregon Digital
| Field | Value |
|---|---|
| Title | Chart of the Mouth of the Columbia River |
| Relation | gov serial set 2013 |
| Date | 2006-01-04 to 2006-01-06 |
| 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. 1015.89 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 | To accompany Report of Board of Engineers for Fortrifications and River and Harbor Improvements of February 12th 1881. Soundings are expressed in fact and show the depths at the average of lowest low water. Note. Small circles in red indicate the positions of bhe bar of the North Channel for the years marked. Small circles in blue indicate the positions of the bar of the South Channel for the years marked. Chart of the MOUTH OF THE COLUMBIA RIVER Surveyed under the direction of... |
| Identifier | http://oregondigital.org/u?/wwdl,3343 |
