File:Columbia River Mouth and Bar.jpg

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English: Topographic map of the underwater area in and around the mouth of the Columbia River in the state of Oregon, USA. Map is based on soundings in feet taken by the National Oceanic and Atmospheric Administration and published in NOAA navigational chart #18521, "Columbia River - Pacific Ocean to Harrington Point", August 2009 (original chart available here: http://www.charts.noaa.gov/OnLineViewer/18521.shtml) which itself is a public domain image.
Topographic lines on this map begin at a depth of 15 feet and occur at 5-foot intervals continuously down to 310 feet (i.e., the edge of the map).
Land masses (states of Washington and Oregon) are shown in dark green with urbanized areas highlighted around the edge in bright green. Tidal sand bars are shown in yellow.
Français : Carte topographique de l'estuaire et de la zone sous-marine périphérique à l'embouchure du fleuve Columbia dans l'état de l'Oregon, aux États-Unis. D'après les données de laNOAA (Administration nationale des océans et de l'atmosphère ; carte de navigation n ° 18521, "Fleuve Columbia - océan Pacifique à Harrington Point", août 2009 ; la carte originale est disponible ici: http://www.charts.noaa.gov/OnLineViewer/18521.shtml, elle-même publiée sous licence domaine public). Les lignes topographiques commencent à une profondeur de 15 pieds et apparaissent à intervalles de 5 pieds de manière continue jusqu'à 310 pieds (bord gauche de la carte). Les masses continentales (États de Washington et de l'Oregon) apparaissent en vert foncé avec les zones urbanisées surlignées en vert clair. Les bancs de sable de marée sont indiquées en jaune.
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Author KDS444

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3 August 2012

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Date/TimeThumbnailDimensionsUserComment
current23:38, 18 December 2012Thumbnail for version as of 23:38, 18 December 20123,957 × 2,557 (4.04 MB)KDS444Added labels for the towns of Ilwaco and Long Beach, Washington, and made labels for North Jetty, South Jetty, and Sand Island more visible in thumbnail view.
12:57, 16 December 2012Thumbnail for version as of 12:57, 16 December 20123,957 × 2,557 (4.05 MB)KDS444Added labels for jetties and Sand Island
12:27, 16 December 2012Thumbnail for version as of 12:27, 16 December 20123,957 × 2,557 (4.03 MB)KDS444Added all contour lines down to 310 ft.
19:20, 15 August 2012Thumbnail for version as of 19:20, 15 August 2012900 × 582 (472 KB)KDS444corrections
20:37, 12 August 2012Thumbnail for version as of 20:37, 12 August 20121,200 × 775 (697 KB)KDS444

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