2023年2月15日 · Map showing mouth of the Columbia River, with historical shorelines, from the paper Historical evolution of the Columbia River littoral cell. Public Domain.

Bathymetric map of the Columbia River mouth: isobaths at five-foot (1.5 m) intervals, 15–310 feet (4.6–94.5 m). Sandbars in yellow. The Columbia Bar is a system of bars and shoals at the mouth of the Columbia River spanning the U.S. states of Oregon and Washington.

The mouth of the Columbia is just past Astoria, Oregon; ships must navigate the treacherous Columbia Bar (near horizon, not visible in this picture) to enter or exit the river.

Map depicting the outlet of the Columbia River to the Pacific Ocean. The map shows water depths, Astoria, Oregon, Gray's Bay, Cape Disappointment, and the locations of Native American tribal groups.

Mouth Of The Columbia River Map: Lower Columbia River Basin (mouth to Yakima River) United States. Army. Corps of Engineers.

1853 Map, Washington and Oregon and the Columbia River, from the Clearwater River to the Snake River and down the Columbia River to the Pacific Ocean (section of original).

2024年9月17日 · Maps of study area showing, A, extents of nested wave model grids (Tiers 1-3), locations of bathymetric and topographic survey lines, wave buoys, and tide gauges.

A map of the mouth of the Columbia River, Oregon Territory as surveyed by the United States Exploring Expedition in 1841 under commander Charles Wilkes. Relief shown by hachures. Depths shown by soundings. Inset details soundings of the Bar of Columbia ...

A large detailed chart of the Mouth of Columbia River Oregon Territory showing Cape Hancock or Disappointment and Point Adams at the entry of the river, to Young's Bay, Baker's Bay, Township of Astoria and on to Tongue Point and Gray Point on the east.

Map of the Columbia River estuary, including the entire lower estuary and part of the upper estuary. Note: MCR = mouth of the Columbia River, blue to yellow shading defines the offshore...