James River (Dakotas)

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Coordinates: 42°52′17″N 97°17′26″W / 42.87139°N 97.29056°W / 42.87139; -97.29056
James River
Jim River, Dakota River
James River in Jamestown, N.D.jpg
Flowing through Jamestown, North Dakota
Country United States
States North Dakota, South Dakota
Cities Jamestown, ND, Aberdeen, SD, Huron, SD, Mitchell, SD, Yankton, SD
Source Unnamed pond
 - location Wells County, North Dakota
 - elevation 1,871 ft (570 m)
 - coordinates 47°28′53″N 99°51′32″W / 47.48139°N 99.85889°W / 47.48139; -99.85889
Mouth Missouri River
 - location Yankton County, near Yankton, South Dakota
 - elevation 1,152 ft (351 m)
 - coordinates 42°52′17″N 97°17′26″W / 42.87139°N 97.29056°W / 42.87139; -97.29056
Length 710 mi (1,143 km)
Basin 20,942 sq mi (54,240 km2)
Discharge for Scotland, SD
 - average 646 cu ft/s (18 m3/s)
 - max 29,400 cu ft/s (833 m3/s)
 - min 0 cu ft/s (0 m3/s)
The course and watershed of the James River.
This excerpt from the Lewis and Clark map of 1814 shows the rivers of western Iowa and eastern South Dakota. The James (Jacque) is seen near the left center of the map.

The James River (also known as the Jim River or the Dakota River) is a tributary of the Missouri River, approximately 710 mi (1,143 km) long, draining an area of 20,653 square miles (53,490 km2) in the U.S. states of North Dakota and South Dakota.[1] The river provides the main drainage of the flat lowland area of the Dakotas between the two plateau regions known as the Coteau du Missouri and the Coteau des Prairies. This narrow area was formed by the James lobe of the Laurentide glacier during the last ice age, and as a consequence the watershed of the river is slender and it has few major tributaries for a river of its length.

The river rises in Wells County, North Dakota, approximately 10 mi (16 km) northwest of Fessenden. It flows briefly east towards New Rockford, then generally SSE through eastern North Dakota, past Jamestown, where it is first impounded by a large reservoir (the Jamestown Dam), and then joined by the Pipestem River. It enters northeastern South Dakota in Brown County, where it is impounded to form two reservoirs northeast of Aberdeen.

At Columbia, it is joined by the Elm River. Flowing southward across eastern South Dakota, it passes Huron and Mitchell, where it is joined by the Firesteel Creek. South of Mitchell, it flows southeast and joins the Missouri just east of Yankton.

Originally called "E-ta-zi-po-ka-se Wakpa," literally "unnavigable river" by the Dakota tribes, the river was named Rivière aux Jacques (literally, "James River" in English) by French explorers. By the time Dakota Territory was incorporated, it was being called the James River. This name was provided by Thomas L. Rosser, a former Confederate general who helped to build the Northern Pacific Railroad across North Dakota. A Virginian, he named the river and the settlement of Jamestown, North Dakota, after the English colony of Jamestown, Virginia. (The coincidence of the old French name "Jacques" directly translating as "James" in English is noted.) However, the Dakota Territory Organic Act of 1861 renamed it the Dakota River. The new name failed to attain popular usage and the river retains its pre-1861 name.

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