Illinois River is a tributary of the Michigan River, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
, accessed March 21, 2011 in Jackson County in north central

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...

. It drains part of the North Park basin south of

Walden ''Walden'' (; first published in 1854 as ''Walden; or, Life in the Woods'') is a book by American transcendentalist writer Henry David Thoreau. The text is a reflection upon the author's simple living in natural surroundings. The work is part ...

. The Illinois River starts in the

Never Summer Mountains The Never Summer Mountains are a mountain range in the Rocky Mountains in north central Colorado in the United States consisting of seventeen named peaks. The range is located along the northwest border of Rocky Mountain National Park, forming t ...

near the continental divide, just south of Farview Mountain. It descends northward through a winding gorge, emerging into North Park at approximately above sea level. It flows northward through the valley as a winding stream, past

Rand The RAND Corporation (from the phrase "research and development") is an American nonprofit global policy think tank created in 1948 by Douglas Aircraft Company to offer research and analysis to the United States Armed Forces. It is finan ...

. It passes under State Highway 14 just southeast of

and joins the Michigan from the north just north of Walden. A portion of the valley of the river south of Walden is located within the Arapaho National Wildlife Refuge.

References

Rivers of Jackson County, Colorado Rivers of Colorado {{Colorado-river-stub

See also

References