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The South Platte River
Platte River
is one of the two principal tributaries of the Platte River. Flowing through the U.S. states of Colorado
Colorado
and Nebraska, it is itself a major river of the American Midwest and the American Southwest/Mountain West. Its drainage basin includes much of the eastern flank of the Rocky Mountains
Rocky Mountains
in Colorado; much of the populated region known as the Colorado
Colorado
Front Range and Eastern Plains; and a portion of southeastern Wyoming
Wyoming
in the vicinity of the city of Cheyenne. It joins the North Platte River
North Platte River
in western Nebraska
Nebraska
to form the Platte, which then flows across Nebraska
Nebraska
to the Missouri. The river serves as the principal source of water for eastern Colorado. In its valley along the foothills in Colorado, it has permitted agriculture in an area of the Colorado
Colorado
Piedmont and Great Plains
Great Plains
that is otherwise arid.

Contents

1 Description 2 History 3 Dams 4 Fly fishing
Fly fishing
overview 5 Recreation 6 See also 7 References 8 External links

Description[edit] The river is formed in Park County, Colorado, southwest of Denver
Denver
in the South Park grassland basin by the confluence of the South Fork and Middle Fork, approximately 15 miles (24 km) southeast of Fairplay. Both forks rise along the eastern flank of the Mosquito Range, on the western side of South Park, which is drained by the tributaries at the headwaters of the river. From South Park, it passes through 50 miles (80 km) of the Platte Canyon
Platte Canyon
and its lower section, Waterton Canyon. Here, it is joined by the North Fork before emerging from the foothills southwest of the Denver
Denver
suburb of Littleton. At Littleton, the river is impounded to form Chatfield Reservoir, a major source of drinking water for the Denver Metropolitan Area. The river flows north through central Denver, which was founded along its banks at its confluence with Cherry Creek. The valley through Denver
Denver
is highly industrialized, serving generally as the route for both the railroad lines, as well as Interstate 25. On the north side of Denver
Denver
it is joined somewhat inconspicuously by Clear Creek, which descends from the mountains to the west in a canyon that was the cradle of the Pike's Peak Gold Rush. North of Denver
Denver
it flows through the agricultural heartland of the Piedmont (a shale region that was formed through erosion by the ancestor of the river following the creation of the Rockies). It flows directly past the communities of Brighton and Fort Lupton, and is joined in succession by Saint Vrain Creek, the Little Thompson River, the Big Thompson River, and the Cache la Poudre River, which it receives just east of Greeley. East of Greeley it turns eastward, flowing across the Colorado
Colorado
Eastern Plains, past Fort Morgan and Brush, where it turns northeastward. It continues past Sterling, and runs into Nebraska
Nebraska
between Julesburg, Colorado
Colorado
and Big Springs, Nebraska. In Nebraska, it passes south of Ogallala and joins the North Platte River
North Platte River
near the city of North Platte. The South Platte River
Platte River
through Denver
Denver
is on the U.S. EPA's list of impaired waterbodies for pathogen impairment, with E. coli as the representative pathogen species. Other water issues involve the appearance of the New Zealand Mud Snail
New Zealand Mud Snail
and of the Zebra Mussel. History[edit] The South Platte was originally called Niinéniiniicíihéhe by the native Arapaho people who lived on its banks. The early Spanish explorers called it the Rio Chato (calm river). In 1702, it was named the Rio Jesus Maria by Captain Jose Lopez, the Tewa Irish scout and Captain of War of the New Mexico Indian Auxiliaries who was ordered by the Viceroy of New Spain to search the Tierra Incognita for a French incursion into New Mexico.[4] The South Platte River
Platte River
also served as a vital water source in Colorado. Long before the city of Denver
Denver
was created many travelers came to the South Platte River
Platte River
to escape the arid Great Plains. These people could survive the heat but not without the vital water source that the South Platte River
Platte River
gave them. Buckets and wells sufficed as a water system for a while but eventually the Denver
Denver
Water System was created.[5] Dams[edit] In an arid region of the United States, the South Platte is marked with several dams. The first notable water impoundment on the South Platte is Antero Reservoir. "Antero" is derived from the Spanish word "first,"[citation needed] as it was the first dam on the South Platte River near the river's origin. The next dam is Spinney Mountain Reservoir. At capacity Spinney Mountain covers 2,500 acres (10 km2). A bottom release dam, Spinney releases to the east of the inlet. Two miles below Spinney Mountain Reservoir, the river enters Eleven Mile Reservoir, with a capacity of 97,000 acre feet (120,000,000 m3). The Eleven Mile Reservoir Dam drains into Eleven Mile Canyon, which runs through Forest Service land. Under the reservoir are three former Colorado
Colorado
towns, Howbert, Idlewild, and Freshwater Station, which were submerged to meet the water needs of Denver.[6] From Eleven Mile Canyon, the South Platte runs northeast to Cheesman Reservoir, named for Denver
Denver
water pioneer Walter S. Cheesman. At its completion in 1905, the dam was the world’s tallest, at 221 feet (67 m) above the streambed. The reservoir and related facilities were purchased in November 1918 by the Denver
Denver
Water Board. Cheesman was the first reservoir of Denver's mountain storage facilities and has been designated a National Historic Civil Engineering Landmark. Cheesman Reservoir feeds Cheesman Canyon. Six miles below Cheesman Reservoir is the town of Deckers; there, the river bends north for approximately 17 miles (27 km) to the confluence with the North Fork of the South Platte. In the late 1980s, a proposal was put forth for the Two Forks Dam, which would have created a reservoir flooding the entire section from the North Fork confluence to the town of Deckers. In 1990 the Environmental Protection Agency
Environmental Protection Agency
vetoed the permit, calling the project an "environmental catastrophe." From the confluence, the river flows towards Denver
Denver
and enters Strontia Springs Reservoir. Below Strontia Springs the South Platte runs through Waterton Canyon before entering Chatfield Reservoir. Chatfield marks the seventh and final dam on the South Platte until it merges with the North Platte. Fly fishing
Fly fishing
overview[edit] The South Platte River
Platte River
is a Gold Medal Western trout river on the Eastern Slope of Colorado. The river is well known for its wild trophy population of Brown Trout
Brown Trout
and Rainbow Trout. As a result of the close proximity to Denver, the river sees thousands of fly fishing enthusiasts each year. With seven dams on the river, the South Platte is considered a tailwater fishery. Most of these dams are bottom released which allow for both stable water temperatures throughout the year, and year-round fly fishing. Popular fly fishing stretches of the river include Waterton Canyon, Deckers, Cheesman Canyon and the Dream Stream. Recreation[edit]

Fishing Kayaking Hiking

See also[edit]

List of rivers of Colorado List of rivers of Nebraska North Platte River

References[edit]

^ "South Platte River". Geographic Names Information System. United States Geological Survey. Retrieved 2011-01-29.  ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 25, 2011 ^ Water Data Report, Colorado
Colorado
2003, from Water Resources Data Colorado Water Year 2003, USGS. ^ Nebraska: A Guide to the Cornhusker State. Nebraska
Nebraska
State Historical Society. p. 46. ^ Denver
Denver
Water History. Accessed June 23, 2014. ^ Laura King Van Dusen, "Forty-Six Years in Howbert: 1887-1933: Former Ranching, Railroading Community Covered by Eleven-Mile Reservoir", Historic Tales from Park County: Parked in the Past (Charleston, South Carolina: The History Press, 2013), ISBN 978-1-62619-161-7, pp. 97-104.

External links[edit]

Wikimedia Commons has media related to South Platte River.

Antero Reservoir Chatfield Reservoir Cheesman Reservoir USGS: South Platte River
Platte River
Basin University of Colorado: GIS Hydro Data for the South Platte City of Denver: South Platte Initiative Eleven Mile Reservoir The Greenway Foundation Spinney Mountain Reservoir Strontia Springs Reservoir a

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