The deepest part of the Columbia River is located in the Columbia River Gorge, specifically near the town of The Dalles, Oregon. The depth in this area can reach up to approximately 400 feet (122 meters). This depth is due to the river’s passage through a narrow and steep canyon, which has been carved out over millions of years by the river’s powerful flow.
The Columbia River is one of the largest rivers in North America, stretching over 1,200 miles from its source in the Canadian Rockies to its mouth at the Pacific Ocean. The river’s depth varies significantly along its course, with the deepest sections typically found in the gorge and near the river’s mouth.
The depth of the Columbia River plays a crucial role in its ecosystem, supporting a diverse range of aquatic life and providing important habitats for fish species such as salmon and steelhead. Additionally, the river’s depth and flow are key factors in its use for hydroelectric power generation, navigation, and irrigation.