The Missouri River is the longest river in the United States. Rising in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Mountains of southwestern 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 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 a tributary of the Mississippi, the Missouri River is slightly 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 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.
Cheyenne County is a county located in the U.S. state of Colorado. The county population was 1,748 at 2020 census. The county seat is Cheyenne Wells.
The Kansas River, also known as the Kaw, is a meandering prairie river in northeastern Kansas in the United States. It is the southwesternmost part of the Missouri River drainage, which is in turn the northwesternmost portion of the extensive Mississippi River drainage. Its two names both come from the Kanza (Kaw) people who once inhabited the area; Kansas was one of the anglicizations of the French transcription Cansez of the original kką:ze. The city of Kansas City, Missouri, was named for the river, as was later the state of Kansas.
The Smoky Hill River is a 575-mile (925 km) river in the central Great Plains of North America, running through Colorado and Kansas.
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 Arikaree River is a 156-mile-long (251 km) river in the central Great Plains of North America. It lies mostly in the American state of Colorado, draining land between the North and South Forks of the Republican River, and it flows into the North Fork in Nebraska after flowing a short distance through Kansas. It is a designated area within the Colorado Natural Areas Program to protect native and uncommon species that may be endangered or threatened.
The Smoky Hills are an upland region of hills in the central Great Plains of North America. They are located in the Midwestern United States, encompassing north-central Kansas and a small portion of south-central Nebraska.
The Battle of Beecher Island, also known as the Battle of Arikaree Fork, was an armed conflict between elements of the United States Army and several of the Plains Native American tribes in September 1868. Beecher Island, on the Arikaree River, then known as part of the North Fork of the Republican River, near present-day Wray, Colorado, was named afterwards for Lieutenant Fredrick H. Beecher, an army officer killed during the battle.
The Solomon River, often referred to as the "Solomon Fork", is a 184-mile-long (296 km) river in the central Great Plains of North America. The entire length of the river lies in the U.S. state of Kansas. It is a tributary of the Smoky Hill River.
The Saline River is a 397-mile-long (639 km) tributary of the Smoky Hill River in the central Great Plains of North America. The entire length of the river lies in the U.S. state of Kansas in the northwest part of the state. Its name comes from the French translation of its Native name Ne Miskua, referring to its salty content.
Boulder Creek is a 31.4-mile-long (50.5 km) creek draining the Rocky Mountains to the west of Boulder, Colorado, as well as the city itself and surrounding plains.
The North Fork Republican River is a 55.4-mile-long (89.2 km) tributary of the Republican River. It flows eastward from a source in Yuma County, Colorado to just north of Haigler in Dundy County, Nebraska. There it joins with the Arikaree River to form the Republican River.
The South Fork Republican River is a river that arises in Lincoln County, Colorado, United States, and flows east-northeastward for about 171 miles (275 km) through Kit Carson and Yuma Counties, Colorado, and Cheyenne County, Kansas, to a confluence with the Republican River in Dundy County, Nebraska. Bonny Reservoir is located on the South Fork Republican River in Yuma County, Colorado.
Milford Lake, also known as Milford Reservoir, is the largest man-made lake in Kansas with 15,700 acres (64 km2) of water. Over 33,000 acres (130 km2) of land resources are managed for quality recreational experiences as well as for protection of the project’s natural and cultural resources. Approximately 70% of the land resources are available for public hunting.
The Pawnee Indian Museum State Historic Site, designated by the Smithsonian trinomial 14RP1, is an archaeological site and museum located near the city of Republic in the state of Kansas in the Midwestern United States. It is listed in the National Register of Historic Places under the name Pawnee Indian Village Site.
Guide Rock, whose Pawnee name is Pa-hur or Pahur, is a hill in south central Nebraska in the United States. In the traditional Pawnee religion, it was one of five dwelling places of spirit animals with miraculous powers.
The North Fork Smoky Hill River is a river in the central Great Plains of North America. A tributary of the Smoky Hill River, it flows from eastern Colorado into western Kansas.
Yocemento is an unincorporated community in Big Creek Township, Ellis County, Kansas, United States. The settlement lies across the banks of Big Creek against the base of bluffs capped by massive limestone blocks, in which lies the 20th-century origin of the community.
