Willow Creek is a tributary of the Colorado River, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 18, 2011 in north central Colorado in the United States.
It rises in northwestern Grand County, in the Arapaho National Forest south of Willow Creek Pass at the continental divide. It flows southeast through Willow Creek Reservoir and joins the Colorado three miles northeast of Granby.
See also List of rivers of Colorado List of tributaries of the Colorado River
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