Arkansas River in the context of "Snowpack"

The Mississippi River System, also referred to as the Western Rivers, is a mostly riverine network of the United States which includes the Mississippi River and connecting waterways. The Mississippi River is the largest drainage basin in the United States. In the United States, the Mississippi drains about 41% of the country's rivers.

From the perspective of natural geography and hydrology, the system consists of the Mississippi River itself and its numerous natural tributaries and distributaries. The major tributaries are the Arkansas, Illinois, Missouri, Ohio and Red rivers. Given their flow volumes, major Ohio River tributaries like the Allegheny, Tennessee, and Wabash rivers are considered important tributaries to the Mississippi system. Before the Mississippi River reaches the Gulf of Mexico, it runs into its distributary, the Atchafalaya River.

The Illinois Country (French: Pays des Illinois [pɛ.i dez‿i.li.nwa]; lit. 'land of the Illinois people'; Spanish: País de los ilinueses), also referred to as Upper Louisiana (French: Haute-Louisiane [ot.lwi.zjan]; Spanish: Alta Luisiana), was a vast region of New France claimed in the 1600s that later fell under Spanish and British control before becoming what is now part of the Midwestern United States. While the area claimed included the entire Upper Mississippi River watershed, French colonial settlement was concentrated along the Mississippi and Illinois Rivers in what is now the U.S. states of Illinois and Missouri, with outposts on the Wabash River in Indiana. Explored in 1673 from Green Bay to the Arkansas River by the Canadien expedition of Louis Jolliet and Jacques Marquette, the area was claimed by France. It was settled primarily from the Pays d'en Haut in the context of the fur trade, and in the establishment of missions from Canada by French Catholic religious orders. Over time, the fur trade took some French to the far reaches of the Rocky Mountains, especially along the branches of the broad Missouri River valley. The "Illinois" in the territory's name is a reference to the Illinois Confederation, a group of related Algonquian native peoples.

The Illinois Country was governed from the French province of Canada until 1717 when, by order of King Louis XV, it was annexed to the French province of Louisiana, becoming known as "Upper Louisiana". By the mid-18th century, major settlements included Cahokia, Kaskaskia, Chartres, Saint Philippe, and Prairie du Rocher, all on the east side of the Mississippi in present-day Illinois; and Ste. Genevieve across the river in what is now Missouri, as well as Fort Vincennes in what is now Indiana.

Louisiana, also known as French Louisiana, was a district of New France. In 1682, the French explorer René-Robert Cavelier, Sieur de la Salle erected a cross near the mouth of the Mississippi River and claimed the whole of the drainage basin of the Mississippi River in the name of King Louis XIV, naming it "Louisiana". This land area stretched from near the Great Lakes to the Gulf of Mexico and from the Appalachian Mountains to the Rocky Mountains. The area was under French control from 1682 to 1762 and in part from 1801 (nominally) to 1803.

Louisiana included two regions, now known as Upper Louisiana (la Haute-Louisiane), which began north of the Arkansas River, and Lower Louisiana (la Basse-Louisiane). The U.S. state of Louisiana is named for the historical region, although it is only a small part of the vast lands claimed by France.

Fountain Creek is a creek that originates in Woodland Park in Teller County and flows through El Paso County to its confluence with the Arkansas River near Pueblo in Pueblo County, Colorado. The 74.5-mile-long (119.9 km) creek, once known as the Fontaine qui Bouille, is a tributary of the Arkansas River.

Wichita (/ˈwɪtʃɪtɔː/ WITCH-ih-taw) is the most populous city in the U.S. state of Kansas and the county seat of Sedgwick County. As of the 2020 census, the population of the city was 397,532, and the Wichita metropolitan area had a population of 647,610. It is located in south-central Kansas along the Arkansas River.

Wichita began as a trading post on the Chisholm Trail in the 1860s and was incorporated as a city in 1870. It became a destination for cattle drives traveling north from Texas to Kansas railroads, earning it the nickname "Cowtown". In 1875, Wyatt Earp served as a police officer in Wichita for about one year before going to Dodge City.

The blue catfish (Ictalurus furcatus) is a large species of North American catfish, reaching a length of 65 in (170 cm) and a weight of 143 lb (65 kg). The continent's largest catfish, it can live to 20 years, with a typical fish being between 25–46 in (64–117 cm) and 30–70 lb (14–32 kg). Native distribution is primarily in the Mississippi River and Louisiana drainage systems, including the Missouri, Ohio, Tennessee, and Arkansas Rivers, the Des Moines River in south-central Iowa, the Rio Grande, and south along the Gulf Coast to Belize and Guatemala.

An omnivorous predator, it has been introduced in a number of reservoirs and rivers, notably the Santee Cooper lakes of Lake Marion and Lake Moultrie in South Carolina, the James River in Virginia, Powerton Lake in Pekin, Illinois, and Lake Springfield in Springfield, Illinois. It is also found in some lakes in Florida.

The Sawatch Range /səˈwɑːtʃ/ or Saguache Range is a high and extensive mountain range in central Colorado which includes eight of the twenty highest peaks in the Rocky Mountains, including Mount Elbert, at 14,440 feet (4,401 m) elevation, the highest peak in the Rockies.

The range is oriented along a northwest–southeast axis, extending roughly 80 miles (130 km) from 39°37′36″N 106°32′13″W / 39.62667°N 106.53694°W / 39.62667; -106.53694 in the north to 38°5′51″N 106°3′48″W / 38.09750°N 106.06333°W / 38.09750; -106.06333 in the south. The range contains fifteen peaks in excess of 14,000 feet (4,267 m), also known as fourteeners. The range forms a part of the Continental Divide, and its eastern side drains into the headwaters of the Arkansas River. The western side of the range feeds the headwaters of the Roaring Fork River, the Eagle River, and the Gunnison River, tributaries of the Colorado River.

The Mosquito Range (elevation approximately 14,000 ft) is a high mountain range in the Rocky Mountains of central Colorado in the United States. The peaks of the range form a ridge running north–south for roughly 40 mi (64 km) from southern Summit County on the north end, then along the boundary between Lake and Park Counties. The range forms a high barrier separating the headwaters of the Arkansas River near Leadville from South Park and the headwaters of the South Platte River near Fairplay. The highest peak in the range is Mount Lincoln at an elevation of 14,286 ft. Other fourteeners in the range are Quandary Peak (14,272 ft), Mount Bross (14,172 ft), Mount Democrat (14,148 ft), and Mount Sherman (14,036 ft).

Leadville (/ˈlɛdvɪl/ LED-vil) is a statutory city that is the county seat of, the most populous community in, and the only incorporated municipality in Lake County, Colorado, United States. The city population was 2,633 at the 2020 United States census. It is situated at an elevation of 10,119 feet (3,084 m). Leadville is the highest incorporated city in the United States and is surrounded by the two tallest peaks in the state, Mount Elbert and Mount Massive.

Leadville is a former silver mining town that lies among the headwaters of the Arkansas River within the Rocky Mountains. The Leadville Historic District, designated a National Historic Landmark in 1961, contains many historic structures and sites of Leadville's mining era. In the late 19th century, Leadville was the second most populous city in Colorado, after Denver.