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The Cosumnes River is a tributary of the Mokelumne River, approximately 80 mi (128.75 km) long, in northern California in the United States. The last undammed river flowing from the western slope of the central Sierra Nevada mountains, the Cosumnes starts as North, Middle and South forks cuting canyons through the El Dorado and Amador County Gold Country vineyards, then passes through southern Sacramento County in the Sacramento Valley, joining with the Mokelumne River in San Joaquin County and emptying into the Sacramento-San_Joaquin_Delta.
Towns and cities along the Cosumnes River include Plymouth, CA, Rancho Murieta, CA, Sloughhouse, CA, Wilton, CA and Elk Grove, CA.
Map of the Cosumnes River Watershed
External links
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