Alagnak River
| Alagnak River | |
|---|---|
Rapids on the Alagnak  | |
| Location | |
| Country | United States | 
| State | Alaska | 
| Borough | Lake and Peninsula | 
| Physical characteristics | |
| Source | Kukaklek Lake | 
| • location | Katmai National Park and Preserve | 
| • coordinates | 59°07′53″N 155°32′39″W / 59.13139°N 155.54417°W | 
| • elevation | 811 ft (247 m) | 
| Mouth | Kvichak River | 
 • location  | 58 miles (93 km) east of Dillingham, Alaska Peninsula | 
 • coordinates  | 59°00′17″N 156°51′37″W / 59.00472°N 156.86028°W | 
 • elevation  | 0 ft (0 m) | 
| Length | 64 mi (103 km) | 
| Type | Wild | 
| Designated | December 2, 1980 | 
The Alagnak River (/əˈlæɡnæk/ ə-LAG-nak) is a 64-mile (103 km) tributary of the Kvichak River in the U.S. state of Alaska. It has a catchment area of approximately 1400 square mi (3600 km2). It is located in central Lake and Peninsula Borough.