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The Little Marys River is a 24.2-mile-long (38.9 km) tributary of the Marys River. It is located in Randolph County, Illinois, in the Interior River Valleys and Hills ecoregion,.

See also

References

  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed May 13, 2011