Major River Basins of Colorado

Each link listed below contains a description of the river basin, including total basin inflow and outflow, major tributaries and reservoirs, irrigated acreage, and water quality.

Arkansas River Basin

Colorado River Basin

Missouri River Basin

Rio Grande River Basin

A map of average annual outflows of major rivers in Colorado.

Lengths of Colorado's major streams.

The number of naturally occurring lakes in each major river basin.

Today's streamflows and historic streamflows at U.S. Geological Survey gaging stations in Colorado.

The Natural Resources Conservation Service collects SNO-TEL data which are used to predict spring runoff.

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