Record Details
pages 412-413
Oregon Digital
| Field | Value |
|---|---|
| Identifier | ORU_WTXT_025gy http://oregondigital.org/u?/wwdl,450 |
| Title | pages 412-413 |
| Relation | The Columbia Unveiled |
| Date | 2004-07-22 |
| 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. 97,334 bytes 8 bit - Gray Gamma 2.2 - grayscale Omnipage 14 used to OCR 8 bit grayscale tiffs and generate text files for full text access. 16 bit grayscale tiffs edited in Photoshop 6.0: cropped, rotated, reduced in size, levels adjusted from 0 - 1.00 - 255 to 0 - 1.00 - 249, bit depth reduced to 8 and JPEGs created. |
| Description | Image Caption: MITCHELL POINT TUNNEL --page break-- sists of 200 miles of asphaltic concrete paving from Astoria to The Dalles, and 140 miles of gravel and crushed rock surfacing from The Dalles to Pendleton. The construction of some of the paved parts of the highway was probably the most difficult highway construction ever undertaken in the United States. For many miles it was necessary to construct the roadbed upon the rugged, nearly vertical walls of the Columbia River Gorge,... |
