The Colorado river began somewhere than in the desert, which is often the only way streams leaving the desert have water, therefore the river still has water after leaving the arid southwest region and entering the gulf of California.
The Colorado River and its tributaries travel through seven different states in the United States as well as Mexico on their way from their source in Colorado and Wyoming to where they flow into the Gulf of California. However, there were drawbacks; over a number of decades, river flows fell. Between 1960 and 1980, as Lake Powell developed behind Glen Canyon Dam, the Colorado River gradually ceased to flow steadily in the direction of the ocean.
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