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The John Day Dam is a concrete gravity run-of-the-river dam spanning the Columbia River in the northwestern United States. [3] The dam features a navigation lock plus fish ladders on both sides. The John Day Lock has the highest lift (at 110 feet or 34 meters) of any U.S. lock. [4] The reservoir impounded by the dam is Lake Umatilla, [5] and it ...
The Lewis River is a tributary of the Columbia River, about 95 miles (153 km) long, in southwestern Washington in the United States. It drains part of the Cascade Range north of the Columbia River. The drainage basin of the Lewis River covers about 1,046 square miles (2,709 km 2 ). [4] The river's mean annual discharge is about 6,125 cubic feet ...
The Interstate Bridge (also Columbia River Interstate Bridge, I-5 Bridge, Portland-Vancouver Interstate Bridge, Vancouver-Portland Bridge) is a pair of nearly identical steel vertical-lift, Parker through- truss bridges that carry Interstate 5 traffic over the Columbia River between Vancouver, Washington and Portland, Oregon in the United ...
Coordinates: 46°N 116°W. The Columbia Basin. The Columbia River drainage basin is the drainage basin of the Columbia River in the Pacific Northwest region of North America. It covers 668,000 km 2 or 258,000 sq mi. [1] In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern ...
Hippopotamuses are an introduced species in Colombia. Four hippopotamuses were kept by Pablo Escobar in the late 1970s, and upon his death in 1993 they were allowed to wander his unattended estate. By 2019 their population had grown to approximately one hundred individuals, causing concerns for harming the native flora and fauna in the area; as ...
Left tributary Right tributary Length (km) Basin size (km 2) . Average discharge (m 3 /s) . Lower Columbia. Mouth to Bonneville Dam. Youngs: 43 257.6 14.7 Grays: 48 320 15.9 Elochoman
The Kootenay River [7] or Kootenai River [2] is a major river of the Northwest Plateau in southeastern British Columbia, Canada, and northern Montana and Idaho in the United States. It is one of the uppermost major tributaries of the Columbia River, the largest North American river that empties into the Pacific Ocean.
The Columbia sculpin ( Cottus hubbsi) is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting the Columbia River drainage and Harney Basin in Oregon, British Columbia, Idaho, Washington, and Nevada. It reaches a maximum length of 11.2 cm. [2] It prefers rocky riffles of headwaters and creeks.
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