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The Umatilla River is an 89-mile (143 km) tributary of the Columbia River in northern Umatilla County, Oregon, United States. [4] Draining a basin of 2,450 square miles (6,300 km 2 ), it enters the Columbia near the city of Umatilla in the northeastern part of the state. [4] In downstream order, beginning at the headwaters, major tributaries of ...
The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of four states. The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt provinces on Earth, covering over 210,000 km 2 (81,000 sq mi) mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada.
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the ...
On an average day nearly 303 million US gallons (1,150,000 m 3) of water flow from Big Spring in Missouri at a rate of 469 cubic feet per second (13.3 m 3 /s). Grand Prismatic Spring, Yellowstone National Park, Wyoming
In hydrological and fluvial landforms, the thalweg is a line drawn to join the lowest points along the length of a stream bed or valley in its downward slope, defining its deepest channel. The thalweg thus marks the natural direction (the profile) of a watercourse. The term is also sometimes used to refer to a subterranean stream that ...
Heavy storms slammed the Houston area again Friday, widening already dangerous flooding in Texas and putting stranded drivers and a school bus of children in need of high-water rescues. There had ...
The Guadalupe River ( / ˌɡwɑːdəˈlup /) [4] ( Spanish pronunciation: [gwaðaˈlupe]) runs from Kerr County, Texas, to San Antonio Bay on the Gulf of Mexico, with an average temperature of 17.75 degrees Celsius (63.95 degrees Fahrenheit). [5] It is a popular destination for rafting, fly fishing, and canoeing.
The Pedernales River ( / ˌpɜːrdəˈnælɪs / PUR-də-NAL-iss) is a tributary of the Colorado River, approximately 106 miles (171 km) long, in Central Texas in the United States. [2] It drains an area of the Edwards Plateau, flowing west to east across the Texas Hill Country west of Austin. The name "Pedernales", first used in the middle 18th ...