where does the desplaines river start and end
Des Plaines River The Des Plaines River (/dɪsˈpleɪnz/) is a river that flows southward for 133 miles (214 km)[1] through southern Wisconsin and northern Illinois[2] in the United States Midwest, eventually meeting the Kankakee River west of Channahon to form the Illinois River, a tributary of the Mississippi River.
Meramec River The Meramec River (/ˈmɛrɪmæk/) is one of the longest free-flowing waterways in Missouri, draining 3,980 square miles (10,300 km2)[1] while wandering 218 miles (351 km)[2] from headwaters near Salem to where it empties into the Mississippi River near St. Louis at Arnold and Oakville. The Meramec watershed covers six Missouri Ozark Highland counties—Dent, Phelps, Crawford, Franklin, Jefferson, and St. Louis—and portions of eight others—Maries, Gasconade, Iron, Washington, Reynolds, St. Francois, Ste. Genevieve, and Texas. Between its source and its mouth, it falls 1,025 feet (312 m). Year-round navigability begins above Maramec Spring, just south of St. James. The Meramec's size increases at the confluence of the Dry Fork, and its navigability continues until the river enters the Mississippi at Arnold, Missouri.