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Colorado River

Cultural  
  1. River in the southwestern United States, with its headwaters in the Rocky Mountains of northern Colorado, that flows generally southwest through Colorado, Utah, and Arizona; forms the border between Nevada and Arizona and Arizona and California; and then flows through Mexico, emptying into the Gulf of California.


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Source of fresh water for communities in Nevada, Arizona, and California.

The site of the Hoover Dam.

Over millions of years, the force of the river has carved the Grand Canyon in northwestern Arizona.

Example Sentences

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About 40 million people rely on the Colorado River.

From The Wall Street Journal ● Oct. 9, 2026

It brings together improved modeling with NASA-satellite-validated measurements of snowpack, surface and groundwater storage, soil moisture, and other conditions throughout the Colorado River Basin in a single interactive system.

From Science Daily ● Sep. 23, 2026

The ranchers depend on snowmelt that feeds the Colorado River and its tributaries to nourish grasses and hay pastures for their herds.

From Los Angeles Times ● Sep. 5, 2026

The NPS earlier said it had found the body of a 46-year-old man near Crystal Rapids along the Colorado River.

From BBC ● Sep. 1, 2026

Which means that the Colorado River won’t even reach California anymore.

From "Dry" by Neal Shusterman and Jarrod Shusterman

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