Flat River (South Nahanni River)

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Flat River
Data
location Northwest Territories ( Canada )
River system Mackenzie River
Drain over South Nahanni River  → Liard River  → Mackenzie River  → Arctic Ocean
source Mirror Lake
62 ° 1 ′ 35 ″  N , 128 ° 17 ′ 34 ″  W.
Source height approx.  1180  m
muzzle South Nahanni River Coordinates: 61 ° 32'5 "  N , 125 ° 20'13"  W 61 ° 32'5 "  N , 125 ° 20'13"  W.

length approx. 220 km
Catchment area approx. 8560 km²
Runoff at the gauge at the airfield of Tungsten
A Eo : 171 km²
MQ 1988/1992
Mq 1988/1992
3.7 m³ / s
21.6 l / (s km²)
Discharge at the gauge near the mouth of the
A Eo : 8560 km²
MQ 1960/2000
Mq 1960/2000
94 m³ / s
11 l / (s km²)
Right tributaries Caribou River
Communities Tungsten

The Flat River is a right tributary of the South Nahanni River in the Canadian Northwest Territories .

The Flat River has its origin in Mirror Lake north of Tungsten not far from the border with the Yukon Territory . It flows in a south-easterly direction through the mountains and passes the town of Tungsten. Its valley forms the boundary between the Selwyn Mountains to the west and the Backbone Ranges to the east . About 80 km downstream is Seaplane Lake , a starting point for canoe tours on the lower reaches of the Flat River. After another 20 km the Flat River reaches the Nahanni National Park Reserve . The river now flows a bit to the north, then turns again to the east and finally flows into the South Nahanni River after about 220 km 20 km below the Virginia Falls .

The Flat River is a white water river with rapids of difficulty levels II – V. The Cascade-of-the-Thirteen-Steps is a special obstacle on the course of the river, which can be bypassed using portage .

Web links

Individual evidence

  1. Flat River at the gauge at Tungsten Airfield - hydrographic data from R-ArcticNET
  2. Flat River at the gauge near the mouth - hydrographic data from R-ArcticNET