Cosna River (Alaska)
The Cosna River (Lower Tanana: K'osno) is a 44-mile (71 km) tributary of the Tanana River in the central part of the U.S. state of Alaska. It flows northward from the Bitzshtini Mountains into the Tanana west (downstream) of Manley Hot Springs.
| Cosna River | |
|---|---|
Location of the mouth of the Cosna River in Alaska | |
| Native name | K'osno' (Lower Tanana) |
| Location | |
| Country | United States |
| State | Alaska |
| District | Yukon–Koyukuk Census Area |
| Physical characteristics | |
| Source | Bitzshtini Mountains |
| • coordinates | 64°24′34″N 152°00′31″W |
| • elevation | 1,985 ft (605 m) |
| Mouth | Tanana River |
• location | 32 miles (51 km) northeast of Bitzshtini Mountains |
• coordinates | 64°51′16″N 151°21′55″W |
• elevation | 249 ft (76 m) |
| Length | 44 mi (71 km) |
In 1899, Lieutenant J. S. Herron attributed the name to the Tanana peoples living in the area. However, a century later linguist William Bright, citing the Koyukon Athabascan Dictionary, attributed the name to the Koyukon words kk' os, schist rock, combined with no', river.
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