Laramie River

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Coordinates: 42°11′59″N 104°31′47″W / 42.19972°N 104.52972°W / 42.19972; -104.52972
Laramie River
DSCN5229 laramieriver e.jpg
The Laramie River, as it flows past the site of old Fort Laramie
Name origin: Named for Jacques La Ramie, French fur trapper [1]
Country United States
States Colorado, Wyoming
Tributaries
 - left North Laramie River
 - right Chugwater Creek
Cities Laramie, Wheatland, Fort Laramie
Source Chambers Lake
 - location Larimer County, Colorado
 - elevation 9,192 ft (2,802 m) [2]
 - coordinates 40°36′56″N 105°51′29″W / 40.61556°N 105.85806°W / 40.61556; -105.85806
Mouth North Platte River
 - location Goshen County, Wyoming
 - elevation 4,213 ft (1,284 m) [3]
 - coordinates 42°11′59″N 104°31′47″W / 42.19972°N 104.52972°W / 42.19972; -104.52972 [3]
Length 280 mi (451 km)
Basin 4,564 sq mi (11,820 km2) [4]
Discharge for near Fort Laramie, 0.6 miles (1.0 km) from mouth
 - average 129 cu ft/s (3.7 m3/s) [4]
 - max 6,260 cu ft/s (177.3 m3/s)
 - min 0 cu ft/s (0 m3/s)
Map highlighting the Laramie River (in bright blue, below and slightly left of center)

The Laramie River is a tributary of the North Platte River, approximately 280 miles (450 km) long,[5] in the U.S. states of Colorado and Wyoming. The river was named for Jacques La Ramie, a fur trapper who visited the area in the early 19th century. Laramie County, Wyoming, the city of Laramie, and other geographical entities in the region have "Laramie" in their names.[1]

Course[edit]

The river rises in northern Colorado, in the Roosevelt National Forest in the Front Range, in western Larimer County. It flows north-northwest into Wyoming, along the east side of the Medicine Bow Mountains, past Jelm and Woods Landing, then northeast emerging from the mountains 22 miles (35 km) southwest of Laramie. The river then flows north through Laramie. In the Laramie Plains it is joined by the Little Laramie River. The Laramie River then continues north through the Laramie Plains and through Wheatland Reservoir. It flows northeast through the Laramie Mountains. Emerging from the mountains, it receives the North Laramie River 5 miles (8 km) north of Wheatland and Chugwater Creek 7 mi (11 km) northeast of Wheatland. It joins the North Platte opposite the town Fort Laramie.[6]

In its upper reaches in Colorado, the river supplies water to the Cache La Poudre River via the Laramie–Poudre Tunnel. The tunnel, which is approximately 2 miles (3 km) long, was finished in 1911 as part of a larger irrigation project for northern Colorado.[7]

Discharge[edit]

Statistic Location Time period Discharge
Yearly mean discharge Near Woods Landing year 173 cu ft/s (4.9 m3/s)
Near Bosler year 150 cu ft/s (4.2 m3/s)
Near Fort Laramie year 129 cu ft/s (3.7 m3/s)[4]
Month with highest mean discharge Near Woods Landing June 782 cu ft/s (22.1 m3/s)
Near Bosler June 726 cu ft/s (20.6 m3/s)[8]
Near Fort Laramie May 363 cu ft/s (10.3 m3/s)[4]
Month with lowest mean discharge Near Woods Landing January 38.5 cu ft/s (1.09 m3/s)
Near Bosler September 31 cu ft/s (0.88 m3/s)[8]
Near Fort Laramie September 59.4 cu ft/s (1.68 m3/s)[4]

Fishing[edit]

The Laramie River is well known as an excellent brown trout fishery.[citation needed] Fly fishing is popular, but larger fish can be caught on minnow and crawfish-imitating lures. Public access points are present in Laramie and south of town, all the way to Woods Landing and beyond. During the summer and fall, a variety of mayflies, stoneflies, caddis, and chironomids provide abundant forage for the resident trout and a great angling opportunity for dry fly enthusiasts.[citation needed] North of Laramie, the river contains walleye and channel catfish that have entered from Grayrocks Reservoir near Wheatland.[citation needed] These can be caught on a variety of artificial and natural baits.

References[edit]

  1. ^ a b "Story Idea, Name Origins: Cheyenne & Laramie County". Visit Cheyenne. January 1, 2010. Retrieved October 12, 2012. 
  2. ^ Source elevation derived from Google Earth search using GNIS source coordinates.
  3. ^ a b "Laramie River". Geographic Names Information System. United States Geological Survey. October 13, 1978. Retrieved October 12, 2012. 
  4. ^ a b c d e "Water-Data Report 2011: 06670500 Laramie River near Fort Laramie, WY" (PDF). United States Geological Survey. Retrieved October 12, 2012. 
  5. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 21, 2011
  6. ^ Wyoming Atlas & Gazetteer. Yarmouth, Maine: DeLorme. 2009. pp. 59–60, 69. ISBN 0-89933-338-9. 
  7. ^ "Rehabilitation in the Rocky Mountains" (PDF). Tunnels & Tunnelling International (World Market Intelligence): 22–25. September 2003. Retrieved October 12, 2012. 
  8. ^ a b "USGS 06661585 Laramie River Near Bosler, WY". United States Geological Survey. Retrieved October 12, 2012. 

See also[edit]