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. 1343.059 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 U.S Engineeer Office, Portland, Oreg. Dec. 5, 1880. G. L. Gillespie [signature] Maj. of Engrs. Brt. Lt. Col. U.S.A. To accompany Report to the Chief of Engr's U.S.A. of this date. Soundings are expressed in fact and show the depths at the average of lowest low water. Note. aaa are low spurs of mattresses and stone built up to low water line. Chart of the MOUTH OF THE COLUMBIA RIVER Surveyed under the direction of Maj. G. L. Gillespie U. S. Engrs. by G. M. Jessen, Asst....
Identifier http://oregondigital.org/u?/wwdl,3336

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