| Newhalen River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Newhalen River in Alaska |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alaska |
| Subdivision Type4: | Borough |
| Subdivision Name4: | Lake and Peninsula |
| Length: | 22miles[1] |
| Source1: | Six Mile Lake |
| Source1 Coordinates: | 59.9489°N -154.8617°W |
| Source1 Elevation: | 253feet[2] |
| Mouth: | Iliamna Lake |
| Mouth Location: | 3miles south of Iliamna |
| Mouth Coordinates: | 59.7133°N -154.89°W[3] |
| Mouth Elevation: | 46feet |
The Newhalen River (Dena'ina: Nughiltnu) is a 22miles stream in the Lake and Peninsula Borough of the U.S. state of Alaska.[1] Beginning at Six Mile Lake, the Newhalen flows south to enter Iliamna Lake about 3miles south of Iliamna.[3]
Alaska Fishing describes the river as "the major pathway for a mind-boggling migration of sockeye salmon"[4] that ascend the stream in early summer. The main game fish in addition to sockeye are rainbow trout.[4]
It is possible to float parts of the Newhalen in rafts and kayaks. However, waterfalls rated Class V (extremely difficult) on the International Scale of River Difficulty and other sections of whitewater rated Class IV (very difficult) mean that the river "is rarely run in its entirety".[5] The first 8miles below Six Mile Lake are Class I (easy), and there is a take-out point, Upper Landing, at the end of this stretch. More difficult water begins below Upper Landing.[5]