Fortymile River

Fortymile River
View from the Taylor Highway over the Fortymile River
Data
Water code	US :  1402291
location	Alaska (USA), Yukon (Canada)
River system	Yukon River
Drain over	Yukon River  → Bering Sea
Confluence of	North Fork and South Fork Fortymile River northwest of Chicken 64 ° 14 ′ 34 ″  N , 141 ° 45 ′ 15 ″  W
Source height	431  m
muzzle	at Forty Mile in the Yukon coordinates: 64 ° 25 ′ 33 ″  N , 140 ° 31 ′ 41 ″  W 64 ° 25 ′ 33 ″  N , 140 ° 31 ′ 41 ″  W
Mouth height	337  m
Height difference	94 m
Bottom slope	approx. 0.94 ‰
length	approx. 100 km
Catchment area	16,600 km²
Discharge at the gauge near the mouth of the A Eo : 16,600 km²	MQ 1982/1996 Mq 1982/1996	75 m³ / s 4.5 l / (s km²)
Communities	Clinton Creek ( desert )
National Wild and Scenic River

Middle Fork Fortymile River
Water code	US :  1406303
location	Alaska (USA)
source	30 km east of Healy Lake 64 ° 1 ′ 8 ″  N , 143 ° 51 ′ 18 ″  W
Source height	approx.  1300  m
muzzle	North Fork Fortymile River 64 ° 27 '43 "  N , 142 ° 12' 49"  W.
Mouth height	521  m
Height difference	approx. 779 m
Bottom slope	about 6 ‰
length	approx. 130 km

North Fork Fortymile River
Water code	US :  1407167
location	Alaska (USA)
Confluence of	Independence Creek and Slate Creek 64 ° 38 ′ 12 ″  N , 142 ° 24 ′ 1 ″  W.
Source height	662  m
Association with	South Fork Fortymile River to Fortymile River 64 ° 14 ′ 34 ″  N , 141 ° 45 ′ 15 ″  W
Mouth height	431  m
Height difference	231 m
Bottom slope	approx. 2.9 ‰
length	approx. 80 km
Right tributaries	Middle Fork Fortymile River

South Fork Fortymile River
Water code	US :  1409922
location	Alaska (USA)
Confluence of	Mosquito Fork and Dennison Fork 64 ° 3 ′ 18 ″  N , 141 ° 54 ′ 28 ″  W.
Source height	488  m
Association with	North Fork Fortymile River to Fortymile River 64 ° 14 ′ 34 ″  N , 141 ° 45 ′ 15 ″  W
Mouth height	431  m
Height difference	57 m
Bottom slope	approx. 1.3 ‰
length	approx. 45 km

The Fortymile River ( English for "Forty Mile River") is a left tributary of the Yukon River in Alaska and the Canadian Yukon Territory .

It is formed by the confluence of the North Fork Fortymile River and South Fork Fortymile River 50 km southeast of Eagle in Alaska. From there, the Fortymile River flows about 80 km in an easterly direction and flows 40 miles downstream from Fort Reliance at the former gold rush settlement Forty Mile in the Yukon Territory in the Yukon River. The Middle Fork Fortymile River is a 130 km long right tributary of the North Fork Fortymile River, which rises 30 km east of Healy Lake in the Yukon Tanana Highlands on the watershed between the Yukon River and Tanana River .

The numerous branches of the river in the headwaters unite in the region west of the Taylor Highway . The last major tributary meets the Fortymile River north of the junction with the Top of the World Highway .

In 1980 the Alaska National Interest Lands Conservation Act designated 630 km of river length in the catchment area of ​​the Fortymile River in Alaska as a National Wild and Scenic River under the administration of the Bureau of Land Management .

Web links

Commons : Fortymile River  - collection of pictures, videos and audio files

Individual evidence

1. ↑ ^{a b} North Fork Fortymile River in the Geographic Names Information System of the United States Geological Survey
2. ↑ ^{a b c} Fortymile River in the Geographic Names Information System of the United States Geological Survey
3. ↑ ^{a b} Fortymile River at the gauge near the mouth - hydrographic data from R-ArcticNET
4. ↑ Middle Fork Fortymile River in the Geographic Names Information System of the United States Geological Survey
5. ↑ Independence Creek in the Geographic Names Information System of the United States Geological Survey
6. ↑ Mosquito Fork in the Geographic Names Information System of the United States Geological Survey
7. ↑ South Fork Fortymile River in the Geographic Names Information System of the United States Geological Survey
8. ^ Fortymile River. ( Memento from January 11, 2009 in the Internet Archive ) National Wild & Scenic Rivers