Powell River (Tennessee River tributary)

The Powell River is a 195-mile-long river in the United States that rises in Southwest Virginia and flows southwest into East Tennessee.

Powell River
The Powell River near Harrogate in Claiborne County, Tennessee
The Powell drainage basin
Location
Country	United States
State	Virginia, Tennessee
Physical characteristics
Source	Indian Mountain in Wise County, Virginia
• coordinates	37°01′51″N 82°42′25″W[1]
• elevation	3,490 ft (1,060 m)[1]
Mouth	Clinch River in Claiborne County, Tennessee
• coordinates	36°17′49″N 84°01′34″W[2]
• elevation	1,020 ft (310 m)[1]
Length	195.5 mi (314.6 km)[3]
Basin size	954 sq mi (2,470 km2)[4]
Discharge
• location	US-25E bridge near Arthur, Tennessee, 65.4 miles (105.3 km) above the mouth(mean for water years 1919-1979)[5]
• average	1,157 cu ft/s (32.8 m3/s)(mean for water years 1919-1979)[5]
• minimum	47 cu ft/s (1.3 m3/s) January 1940[5]
• maximum	59,500 cu ft/s (1,680 m3/s) April 1977[5]

The South Fork of the river rises in rural Wise County, Virginia, near the Laurel Grove community northwest of Norton and flows for several miles before the confluence with Roaring Fork in the Kent Junction community. From Kent Junction the river flows until it meets the North Fork of the River near Woodway, Virginia. The North Folk originates near Keokee, Virginia. The river flows past Big Stone Gap, Virginia and then runs nearly the entire length of Lee County, Virginia. It drains approximately 954 square miles (2,471 km²) in both Virginia and Tennessee before reaching its confluence with the Clinch River in the Norris Lake reservoir at the site of the town of Grantsboro.

The Powell River was named for Ambrose Powell who accompanied the exploration party of Dr. Thomas Walker in the mid-18th century. Legend would have that his name appeared so frequently carved on trees in the valley of this river that later explorers and early pioneers came to call the stream "Powell's River" and the valley "Powell's Valley".[6]

The Powell River was designated by the EPA as the “second most biologically diverse aquatic system in the nation.”[7] The Powell is under pressure from the effects of mining (including strip mining), logging and associated road-building.

Lincoln Memorial University operates the Powell River Aquatic Research Station, which is located where Tennessee State Route 63 crosses the river at the Brooks Bridge in Claiborne County, Tennessee. The center, which opened in April 2008, allows for on-site research of water quality, flora, fauna and related habitat.[8]