The Lewis and Clark expedition followed this route. - Largest river by drainage area. - Watershed: 1.2 million sq miles. - Flows through 10 states. - Flows through Alaska. - Watershed: 328,000 sq ...
This map illustrates significant changes in 6,167 reaches of the largest rivers on earth—44.2% saw decreases in streamflow and 11.9% saw increases over 35 years.
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