Portion of hydrographic survey sheet showing Tongue Point, just to the east of Astoria Oregon

Portion of hydrographic survey sheet showing Tongue Point, just to the east of Astoria Oregon. The sheet shows configuration of shoreline, visual signals used for positioning survey vessels, soundings in fathoms graduated to 1/4 fathoms, colored contours, bottom characteristics, wreck symbols, and aids to navigation.

Photo Category: Coast and Geodetic Survey - Archive Hydrographic Survey
Photo Location: Oregon, Columbia River, Tongue Point

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Author: NOAA

License: Public Domain Mark 1.0 (Public domain)

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Added On	20th October 2015
Viewed	13 viewed