North Fork American River
The North Fork American River is the longest branch of the American River in Northern California. It is long from its source at the crest of the Sierra Nevada, near Lake Tahoe, to its mouth at Folsom Lake northeast of Sacramento. Prior to the construction of Folsom Dam the river was about longer making for a total length of .
Columbia, Tennessee
Columbia is located at (35.615022, −87.044464). It is nestled along the banks of the Duck River at the southern edge of the Nashville Basin with the higher elevated ridges of the Highland Rim located to the south and west of the city. The Duck River is the longest river located entirely within the state of Tennessee. Free flowing for most of its length, the Duck River is home to over 50 species of freshwater mussels and 151 species of fish, making it the most biologically diverse river in North America. It enters the city of Manchester and meets its confluence with a major tributary, The Little Duck River, at Old Stone Fort State Park, named after an ancient Native American structure between the two rivers believed to be nearly 2,000 years old. The Duck River is sacred to most of the founding Native American tribes east of the Mississippi River.