|Etymology||French ("flat river") and Chiwere ("flat water")|
|Cities||North Platte, Kearney, Grand Island, Fremont, Omaha|
|Source||North Platte River|
|• location||Confluence of Grizzly Creek and Little Grizzly Creek, Jackson County, Colorado|
|• length||716 mi (1,152 km)|
|• elevation||8,050 ft (2,450 m)|
|2nd source||South Platte River|
|• location||Confluence of Middle Fork and South Fork South Platte Rivers, Park County, Colorado|
|• length||439 mi (707 km)|
|• elevation||8,785 ft (2,678 m)|
|• location||Near North Platte, Lincoln County, Nebraska|
|• elevation||2,762 ft (842 m)|
|Cass / Sarpy counties, at Plattsmouth, Nebraska|
|942 ft (287 m)|
|Length||310 mi (500 km), West-east|
|Basin size||84,910 sq mi (219,900 km2)|
|• location||Louisville, 10 miles (16 km) above the mouth|
|• average||7,037 cu ft/s (199.3 m3/s)|
|• minimum||131 cu ft/s (3.7 m3/s)|
|• maximum||160,000 cu ft/s (4,500 m3/s)|
|River system||Missouri River basin|
|• left||North Platte River, Loup River, Elkhorn River|
|• right||South Platte River|
The Platte River ( // ) is a major river in the State of Nebraska. It is about 310 mi (500 km) long; measured to its farthest source via its tributary, the North Platte River, it flows for over 1,050 miles (1,690 km). The Platte River is a tributary of the Missouri River, which itself is a tributary of the Mississippi River which flows to the Gulf of Mexico. The Platte over most of its length is a broad, shallow, meandering stream with a sandy bottom and many islands—a braided stream.
The Platte is one of the most significant tributary systems in the watershed of the Missouri, draining a large portion of the central Great Plains in Nebraska and the eastern Rocky Mountains in Colorado and Wyoming. The river valley played an important role in the westward expansion of the United States, providing the route for several major emigrant trails, including the Oregon, California, Mormon and Bozeman trails. The first Europeans to see the Platte were French explorers and fur trappers about 1714; they first called it the Nebraskier (Nebraska), a transliteration of the name given by the Otoe people, meaning "flat water". This expression is very close to the French words "rivière plate" ("flat river"), the probable origin of the name Platte River.
The Platte River is formed in western Nebraska east of the city of North Platte, Nebraska by the confluence of the North Platte and the South Platte Rivers, which both arise from snowmelt in the eastern Rockies east of the Continental Divide.
In central north Colorado is the North Park valley, ringed by mountains of 12,000 feet (3,700 m) height; this is where the North Platte River originates. The head of the North Platte River is essentially all of Jackson County; its boundaries are the continental divide on the west and south and the mountain drainage peaks on the east—the north boundary is the state of Wyoming. The nearest Colorado town is Walden, the county seat. The rugged Rocky Mountains Continental Divide surrounding Jackson County have at least twelve peaks over 11,000 feet (3,400 m) in height. From Jackson County, the North Platte flows north about 200 miles (320 km) out of the Routt National Forest and North Park near what is now Walden to Casper, Wyoming. Shortly after passing Casper, the North Platte turns to the east-southeast and flows about 350 miles (560 km) to the city of North Platte, Nebraska. In Colorado and Wyoming, the North Platte is narrower and much swifter flowing than it is in Nebraska, where it becomes a slow flowing, shallow braided stream.
The North Platte River has been dammed about eight times for water storage and irrigation purposes in Wyoming and Nebraska as it flows to its confluence with the South Platte River. The upper reaches of the river in the Rockies in Colorado and Wyoming are popular for recreation rafting and lure and fly fishing for rainbow, brown, cutthroat trout and other sport fish. In western Nebraska, the banks and riverbed of the North Platte provide a green oasis amid an otherwise semi-arid region of North America. Today, by the time the North Platte reaches Paxton, Nebraska it is much smaller due to the extensive water taken from it for irrigation. Historically, the North Platte River was up to a mile wide (1.6 km) in many places, as evinced by the old streambed and historic written records.[ citation needed ]
The South Platte River drainage includes about 28,000 square miles (73,000 km2) in the north east corner of Colorado, parts of southeastern Wyoming in the vicinity of the city of Cheyenne and a small part of the southwest corner of Nebraska. The South Platte drains a large part of the Front Range mountains east of the continental divide. The part of the river labeled the South Platte is formed in Park County, Colorado, located southwest of Denver, in the South Park grassland basin and mountains east of the continental divide. It is formed by the confluence of the South Fork South Platte River and Middle Fork South Platte River, approximately 15 miles (24 km) southeast of Fairplay, Colorado. After the South and Middle fork join, the South Platte flows east-southeast till it exits Elevenmile Reservoir; it turns almost ninety degrees to skirt the west side of Pikes Peak and flows roughly east-northeast about 100 miles (160 km) through Denver and on to Greeley, Colorado. From Greeley, the South Platte turns east and flows about 200 miles (320 km) to its confluence with the North Platte River near the city of North Platte, Nebraska.
The South Platte River has been dammed about 20 times for water storage, drinking water and irrigation purposes in Colorado as it flows to its confluence with the North Platte River. The total number of dams in the South Platte drainage may exceed 1,000 as nearly all major streams have at least one dam on them.The South Platte River serves as the principal source of water for arid eastern Colorado. The South Platte River valley provided a major emigration path to Denver. The wagon trails followed the south side of the Platte/North Platte River. Wagon trains were ferried or waded in low water years across the swampy-bottomed South Platte River in several places to stay on the south side of the North Platte River where the trails were located. Miners who later went on to Denver followed the South Platte River trail into Colorado.
After the North Platte and the South Platte rivers join to form the Platte River, over most of its length it is a sandy, broad, shallow, braided river. Its many shallow channels and islands and ever-changing sandbars made navigation difficult; it was never used as a major water transportation route. The Platte flows in a large arc, east-southeast to near Fort Kearny and then east-northeast, across Nebraska south of Grand Island and on to Columbus. 70-mile-long (110 km) Loup River about 5 miles (8 km) southeast of Columbus. During pioneer days, a Loup River ferry crossed the river. From Columbus, the Platte flows almost due east about 50 miles (80 km) past North Bend and then on to Fremont.The Platte River is joined from the north by the about
Near Fremont, the Platte bends south and then east around the location of Omaha in a large "L" turn. Near Fremont the Platte turns sharply and flows south-southeast about 10 miles (16 km) to about Waterloo, Nebraska—located about 20 miles (32 km) west of Omaha. Near Waterloo the Platte turns even more and heads almost due south for about 10 miles (16 km). About 30 miles (48 km) east-southeast of Waterloo and about 30 miles (48 km) from the Platte's confluence with the Missouri River, the Platte is joined from the north by the Elkhorn River. The Elkhorn, a 290-mile-long (470 km) river, originates in the eastern Sandhills of Nebraska and is one of the largest tributaries of the Platte River. The Elkhorn joins the Platte on its south-bound path just southwest of Omaha, approximately 1 mile (2 km) south and 3 miles (5 km) west of Gretna. The pioneers leaving from near Omaha (established 1854) or Council Bluffs, Iowa (established 1846) used the Mormon Trail north of the Platte River and had to ferry across the Elkhorn. After the Union Pacific railroad was constructed west from Omaha in 1866, it had to build a major bridge across the Elkhorn. After the confluence of the Elkhorn and the Platte River, the Platte continues southward, about 7 miles (11 km) before it turns sharply and heads almost due East for about 20 miles (32 km) before its confluence with the Missouri River. Sarpy County is shaped like a crescent, being bounded on the east by the Missouri River, on the south and west by the Platte, and on the north by Douglas County which contains Omaha. The Platte-Missouri River confluence is about 10 miles (16 km) south of Omaha.
Including the North Platte River, the Platte River stretches over 850 miles (1,400 km), with a drainage basin of about 90,000 square miles (230,000 km2). The mean annual flow is estimated at 3,240 cu ft/s (92 m3/s). The Platte drains one of the most arid areas of the Great Plains with a flow that is considerably lower than rivers of comparable length in North America. For much of its length, it is a classic wide, muddy and shallow braided stream which in the lower reaches flows in a floodplain bordered by bluffs. During pioneer days, the common humorous description was that the Platte was "a mile wide at the mouth, but only six inches deep." 49ers said it was "too thick to drink, too thin to plow". In western Nebraska, the banks and riverbed of the Platte provide a green oasis amid an otherwise semi-arid region of North America. The central Platte River valley is an important stopover for migratory water birds, such as the whooping crane and sandhill crane, in their yearly traversal of the Central Flyway. Fossil evidence in the Platte River valley indicates this crane stopover has been active for over 10 million years.
Since the mid-20th century, this river has shrunk significantly. This reduction in size is attributed in part to its waters being used for irrigation, and to a much greater extent to the waters diverted and used by the growing population of Colorado, which has outstripped the ability of its groundwater to sustain them.
Varying cultures of indigenous peoples lived intermittently along the Platte for thousands of years before European exploration. Historical tribes claimed various territories in the region. The Indian tribes typically visited different areas in different seasons, as they followed the bison herds for hunting periods. The introduction of horses, which had escaped from early Spanish explorers in the 1540s, dramatically changed life in the Great Plains. Indian tribes could more easily follow the buffalo herds as they migrated from north to south and back. Before 1870, herds of several hundred thousand bison (buffalo) periodically migrated across the Platte in following seasonal grazing. The animals often waded or swam across the Platte. The first-known European to see the Platte was the French explorer Étienne de Veniard, sieur de Bourgmont in 1714, who named it the Nebraskier, after its Oto name, meaning "flat water". The French later applied the French word plate (meaning flat, and pronounced plat, or platte) to the river.
Occupied by various Indian tribes for part of each year, the Platte River territory had been claimed by both Spanish and French explorers trying to rule the Great Plains. Spain had "claimed" all of the Great Plains after Coronado's 1541–42 expedition. Jose Naranjo, an African-Hopi who served as a Spanish scout and explorer in the Southwest, was a war captain of the Spanish Indian auxiliaries. By 1714 (the same year the French explorers "discovered" the Platte), he and a small exploration group from the south had reportedly already reached the Platte three times.He later guided the 1720 Villasur expedition to the area in a Spanish effort to stop French expansion onto the Great Plains. Naranjo and Villasur's party made the most northern of Spanish exploration trips into the central plains. A Pawnee and Otoe Indian attack defeated the Spanish forces; the survivors returned to Santa Fe, New Mexico, and the Spanish left the Great Plains to the American Indians.
As a result of the Seven Years' War (1756–1763) (called the French and Indian War in America), the French ceded all of their lands in North America east of the Mississippi River to the British. The Spanish took over lands west of the Mississippi River. Since there were few fur-bearing animals on the Platte of interest to the fur traders, the French and British explorers and fur trappers ignored the Platte territory for some time. During the course of the Napoleonic Wars (1803–1815), France briefly reacquired the land west of the Mississippi River from Spain.
In 1804, Napoleon sold the area west of the Mississippi River to the US in the Louisiana Purchase; the US roughly doubled its area at a cost of about $15,000,000. In 1820 the U.S. Army ordered Major Stephen H. Long to explore and map the area around the Platte. Long reported the area as a great American desert, despite its native inhabitants and wildlife, due to a lack of easily-cultivated land. As a result of his and other reports, the US initially had little interest in settling the land on the plains. The next "good" land was believed to be in Oregon or California, especially the coastal areas, and those were the destinations of most emigrant traffic. The Mormons settled Utah, largely due to religious persecution in eastern areas. Various gold and silver strikes attracted further emigration to nearly all western states.
The Native American trail west along the Platte, North Platte River and Sweetwater River was first written about after its discovery in 1811 by Wilson Price Hunt of the Astor Expedition. He was returning to the Missouri River posts from the newly established Fort Astoria on the Columbia River near the Pacific Ocean. Because few American trappers and settlers were then in the contested Oregon Territory, his trail discovery was little used and nearly forgotten.
In 1823 Jedediah Smith and several trappers "rediscovered" the route. The trail along the Platte, North Platte and Sweetwater rivers became a major route of fur traders to their summer Rocky Mountain Rendezvous. In 1824 fur trappers and traders directing mule trains carrying trade goods and supplies for the mountain men were some of the first European-American parties to use the trail. On their return trip, the fur traders carried out furs destined for eastern markets. The fur trade route was used to about 1840.
By about 1832, the fur traders had improved the trail along the Platte, North Platte, and Sweetwater rivers to a rough wagon trail from the Missouri River to the Green River in Wyoming, where most of the Rocky Mountain Rendezvous were held. In 1834 Benjamin Bonneville, a U.S. Army officer on leave, led an expedition to the west financed by John Jacob Astor. They took wagons along the Platte, North Platte and Sweetwater River trail to the Green River in present-day Wyoming. The notable author Washington Irving wrote an account of Bonneville's explorations in the west that made him well known in the US.
Following the fur traders, the major emigration trails established along the north and south banks of the Platte and North Platte River were the Oregon (1843–1869), California (1843–1869), Mormon (1847–1869) and the Bozeman (1863–68) trails. This network of trails, sometimes called the Emigrant Trails or the Great Platte River Road, all went west along both sides of the Platte River. The route along the Platte River included all these emigration trails and was developed as an important trail route used by migrant wagon trains for westward United States expansion after 1841. The settlement of the Oregon boundary dispute with Britain in 1846, the conclusion of the Mexican–American War in 1848, and the California Gold Rush in 1849 and other gold and silver strikes rapidly attracted increased emigrant traffic west.
The Platte River in the future state of Nebraska and the North Platte River in Wyoming typically had many channels and islands. The waterways were often too shallow, crooked, muddy and unpredictable for a canoe to travel far. The Platte River valley provided an easily passable wagon corridor; it sloped gradually up in height as it went almost due west from the Missouri. The Platte route had access to water, grass, buffalo and buffalo 'chips,' which the Indians and emigrants used as fuel for fires. 1 mile (1.6 km) wide and shallow Platte River. The Platte's water was silty and bad tasting, but it was usable if no other water was available. Emigrants learned to let it sit in a bucket for an hour or so to settle most of the silt. The trail(s) through the Platte River Valley extended about 450 miles (720 km) in the present state of Nebraska. Nearly all the trails from the Missouri converged on the Platte River at or before Fort Kearny in mid-state Nebraska. Historians have estimated about 400,000 emigrants followed the trails along the Platte.Long Native American use had created trails on both sides of the muddy, about
The Pony Express, operational from 1860–61, and the First Transcontinental Telegraph, completed in 1861, both followed the earlier emigrant trails along the Platte. The completion of the telegraph put the Pony Express out of business as it could provide much faster east–west communication. In 1866 the Union Pacific portion of the first Transcontinental Railroad was constructed along the Platte River as it started west from Omaha. In the 20th century, the Lincoln Highway and later Interstate 80 were constructed through the Platte valley. The highways parallel the Platte and the North Platte through much of Nebraska.
Many of Nebraska’s larger cities originated on or near the Platte River, as it was the first path of transportation. These include Omaha (est. 1854), Fort Kearny (est. 1848), Grand Island (est. 1857) and North Platte (est. 1869). In 1859 settlers built the first irrigation ditch to divert water from the Platte for farming.
The Platte is in the middle of the Central Flyway,a primary north–south corridor for migratory birds from their summer nesting grounds in the north (Alaska and Canada), south for the winter, and the return in the spring. The Central Flyway bird species include trumpeter swans, tundra swans, over one million Canada geese, greater white-fronted geese, sandhill cranes, canvasback ducks and others. Other species such as bald eagles, herons and several species of ducks migrate through the Platte River area but over shorter distances. The whooping crane, piping plover, and the interior least tern are birds using the flyway which have been classified as endangered and are protected under the Platte River Endangered Species Partnership.
Common plants in the Platte River area are big and little bluestem, switch grass, and cottonwood trees. White-tail deer, many types of catfish, Canada geese, and bald eagles attract fans. The Platte River area has long supported many animals but recently, due to urbanization and farming causing loss of habitat, the numbers have declined. Canada geese have adapted to the farm fields and scavenge a large part of their fare from unharvested grain. Many have taken up residence at suburban office parks and stopped seasonal migrations.
The Platte River flowing through an arid part of the mid-west has been widely overused. The claims on the Platte River water have exceeded the supply of water in drier years. The criteria for water over-appropriation, according to the final reading of LB 962, is that if the river basin, sub basin, or reach is subject to an interstate cooperative agreement among three or more states and if, prior to such date, the department has declared a moratorium on the issuance of new surface water appropriations in such river basin, sub basin or reach and has requested each natural resource district with jurisdiction in the affected area in such river basin, sub basin or reach either to close or to continue in effect a previously adopted closure of all or part of such river basin, sub basin, or reach to the issuance of additional water well permits in accordance with subdivision. Most of the Platte River basin is currently considered as overappropriated.
Beginning in 2004, a number of Nebraska stakeholders embarked upon the Platte River Cooperative Hydrology Study (COHYST). Conducted with assistance from the United States Geological Survey and the Natural Resources Conservation Service, this study attempts to arrive at a better understanding of the geology and hydrology of the Platte River basin from the Colorado and Wyoming borders to Columbus, including the Loup basin. This improved understanding could be used to develop policies for management of the river system, both for human use and for the sake of the basin's endangered species. As of October 2009, the study is still ongoing.
The Missouri River is the longest river in North America. Rising in the Rocky Mountains of western Montana, the Missouri flows east and south for 2,341 miles (3,767 km) before entering the Mississippi River north of St. Louis, Missouri. The river drains a sparsely populated, semi-arid watershed of more than 500,000 square miles (1,300,000 km2), which includes parts of ten U.S. states and two Canadian provinces. Although nominally considered a tributary of the Mississippi, the Missouri River above the confluence is much longer and carries a comparable volume of water. When combined with the lower Mississippi River, it forms the world's fourth longest river system.
The Oregon Trail was a 2,170-mile (3,490 km) east-west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon. The eastern part of the Oregon Trail spanned part of what is now the state of Kansas and nearly all of what are now the states of Nebraska and Wyoming. The western half of the trail spanned most of the current states of Idaho and Oregon.
The South Platte River is one of the two principal tributaries of the Platte River. Flowing through the U.S. states of 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 in Colorado, much of the populated region known as the Colorado Front Range and Eastern Plains, and a portion of southeastern Wyoming in the vicinity of the city of Cheyenne. It joins the North Platte River in western Nebraska to form the Platte, which then flows across 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 Piedmont and Great Plains that is otherwise arid.
The Mormon Trail is the 1,300-mile (2,100 km) long route from Illinois to Utah that members of The Church of Jesus Christ of Latter-day Saints traveled for 3 months. Today, the Mormon Trail is a part of the United States National Trails System, known as the Mormon Pioneer National Historic Trail.
The North Platte River is a major tributary of the Platte River and is approximately 716 miles (1,152 km) long, counting its many curves. In a straight line, it travels about 550 miles (890 km), along its course through the U.S. states of Colorado, Wyoming, and Nebraska.
The Green River, located in the western United States, is the chief tributary of the Colorado River. The watershed of the river, known as the Green River Basin, covers parts of Wyoming, Utah, and Colorado. The Green River is 730 miles (1,170 km) long, beginning in the Wind River Mountains of Wyoming and flowing through Wyoming and Utah for most of its course, except for 40 miles (64 km) into western Colorado. Much of the route is through the Colorado Plateau and through some of the most spectacular canyons in the United States. It is only slightly smaller than the Colorado when the two rivers merge, but typically carries a larger load of silt. The average yearly mean flow of the river at Green River, Utah is 6,121 cubic feet (173.3 m3) per second.
The Yampa River flows 250 miles (400 km) through northwestern Colorado in the United States. Rising in the Rocky Mountains, it is a tributary of the Green River and a major part of the Colorado River system. The Yampa is one of the few free-flowing rivers in the western United States, with only a few small dams and diversions.
The Sweetwater River is a 238-mile (383 km) long tributary of the North Platte River, in the U.S. state of Wyoming. As a part of the Mississippi River system, its waters eventually reach the Gulf of Mexico.
The Niobrara River is a tributary of the Missouri River, approximately 568 miles (914 km) long, running through the U.S. states of Wyoming and Nebraska. The river drains one of the most arid sections of the Great Plains, and has a low flow for a river of its length. The Niobrara's watershed includes the northern tier of Nebraska Sandhills, a small south-central section of South Dakota, as well as a small area of eastern Wyoming.
The California Trail was an emigrant trail of about 1,600 mi (2,600 km) across the western half of the North American continent from Missouri River towns to what is now the state of California. After it was established, the first half of the California Trail followed the same corridor of networked river valley trails as the Oregon Trail and the Mormon Trail, namely the valleys of the Platte, North Platte, and Sweetwater rivers to Wyoming. The trail has several splits and cutoffs for alternative routes around major landforms and to different destinations, with a combined length of over 5,000 mi (8,000 km).
Fort Laramie was a significant 19th-century trading post, diplomatic site, and military installation located at the confluence of the Laramie and the North Platte rivers. They joined in the upper Platte River Valley in the eastern part of the U.S. state of Wyoming. The fort was founded as a private trading post in the 1830s to service the overland fur trade; in 1849, it was purchased by the United States Army. It was located east of the long climb leading to the best and lowest crossing point of the Rocky Mountains at South Pass and became a popular stopping point for migrants on the Oregon Trail. Along with Bent's Fort on the Arkansas River, the trading post and its supporting industries and businesses were the most significant economic hub of commerce in the region.
Courthouse and Jail Rocks are two rock formations located near Bridgeport in the Nebraska Panhandle.
Lodgepole Creek is a tributary of the South Platte River, approximately 278 miles (447 km) long, in the U.S. states of Wyoming, Nebraska and Colorado. Lodgepole Creek drains a basin in the interior of a low plateau which lies between the South Platte Basin and the North Platte Basin in the southeastern corner of Wyoming, the southern edge of the Nebraska Panhandle and several small portions of northeastern Colorado. As its name implies, Lodgepole Creek is a very small stream; for nearly all of its length it flows through the semiarid High Plains. The Lodgepole Creek Valley has been a major transportation route for over 100 years; the line of the original transcontinental railroad, the Lincoln Highway/U.S. Highway 30 and Interstate 80 all run along the stream for much of its length.
The Elkhorn River is a river in northeastern Nebraska, United States, that originates in the eastern Sandhills and is one of the largest tributaries of the Platte River, flowing 290 miles (470 km) and joining the Platte just southwest of Omaha, approximately 1 mile (1.6 km) south and 3 miles (4.8 km) west of Gretna.
The Nodaway River is a 65.7-mile-long (105.7 km) river in southwest Iowa and northwest Missouri.
Nebraska Highway 92 is a highway that enters the state from Nebraska's western border at the Wyoming state line west of Lyman, Nebraska, to the state's eastern border on the South Omaha Veterans Memorial Bridge over the Missouri River in Omaha, where it enters Iowa. Nebraska Highway 92 passes, follows, or runs through a number of the state's principal attractions, including Scotts Bluff National Monument, the Oregon Trail, Chimney Rock National Historic Site, Ash Hollow State Historical Park, Lake McConaughy, the Nebraska Sand Hills, and the City of Omaha. Nebraska Highway 92 is the longest state route in the state at a total of 489.1 miles (787.1 km), and is part of a continuous 886-mile (1,426 km) four-state "Highway 92" which begins in Torrington, Wyoming, goes through Nebraska and Iowa and ends in La Moille, Illinois. It is the only Nebraska Highway to run from the west border to the east border of Nebraska; along the way it crosses the Platte River or its tributary North Platte River a total of five times.
The path followed by the Oregon Trail, California Trail and Mormon Trail spans 400 miles (640 km) through the U.S. state of Wyoming. The trail entered from Nebraska on the eastern border of the state near the present day town of Torrington and exited on the western border near the towns of Cokeville and Afton. An estimated 350,000 to 400,000 settlers traveled on the trail through Wyoming between 1841 and 1868. All three trails follow the same path through most of the state. The Mormon Trail splits at Fort Bridger and enters Utah, while the Oregon and California Trails continue to Idaho.
The Great Platte River Road was a major overland travel corridor approximately following the course of the Platte River in present-day Nebraska and Wyoming that was shared by several popular emigrant trails during the 19th century, including the Trapper's Trail, the Oregon Trail, the Mormon Trail, the California Trail, the Pony Express route, and the military road connecting Fort Leavenworth and Fort Laramie. The road, which extended nearly 800 miles (1,300 km) from the Second Fort Kearny to Fort Laramie, was utilized primarily from 1841 to 1866. In modern times it is often regarded as a sort of superhighway of its era, and has been referred to as "the grand corridor of America's westward expansion".
The historic 2,170-mile (3,490 km) Oregon Trail connected various towns along the Missouri River to Oregon's Willamette Valley. It was used during the 19th century by Great Plains pioneers who were seeking fertile land in the West and North.
|Wikisource has the text of the 1911 Encyclopædia Britannica article Platte .|
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|Wikivoyage has a travel guide for Platte River Valley .|