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Illinois River is a tributary of the Michigan River, approximately 71 miles (114 km) long,[2] in Jackson County in north central Colorado. It drains part of the North Park basin south of Walden.
| Illinois River[1] | |
|---|---|
 Illinois River in April from SH 14 south of Walden | |
 | |
| Physical characteristics | |
| Source | |
| • location | Never Summer Mountains |
| Mouth | |
• location | Confluence with Michigan |
• coordinates | 40°45′08″N 106°18′11″W / 40.75222°N 106.30306°W |
• elevation | 8,022 ft (2,445 m) |
| Basin features | |
| Progression | Michigan—North Platte—Platte— Missouri—Mississippi |
The Illinois River starts in the Never Summer Mountains near the continental divide, just south of Farview Mountain. It descends northward through a winding gorge, emerging into North Park at approximately 8,000 feet (2,400 m) above sea level. It flows northward through the valley as a winding stream, past Rand. It passes under State Highway 14 just southeast of Walden 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.
See also
editReferences
edit- ^ "Illinois River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2011-01-31.
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed March 21, 2011
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