Little Arkansas River

Little Arkansas River. The Little Arkansas River is a significant tributary of the Arkansas River, flowing approximately 90 miles through the central plains of Kansas. It rises in the Smoky Hills region and drains a watershed of over 1,200 square miles before joining the main stem of the Arkansas River in the heart of Wichita, Kansas. The river's course and history are deeply intertwined with the development of Sedgwick County and the broader Great Plains.

Course

The river originates in northeastern McPherson County, Kansas, near the town of Windom, within the Smoky Hills physiographic region. It flows generally southeastward, passing through Rice County and into Reno County, where it is impounded to form Cheney Reservoir, a primary water supply for the city of Wichita. Below the dam, the river continues southeast, forming the boundary between Reno and Harvey Counties before entering Sedgwick County. Its final stretch flows through the northern and eastern parts of Wichita, where it passes landmarks like the Keeper of the Plains statue before its confluence with the Arkansas River near downtown.

History

The river valley has been a site of human activity for millennia, utilized by various Plains Indians tribes, including the Wichita, Pawnee, and later the Cheyenne and Arapaho. In 1865, the Little Arkansas Treaty was signed along its banks, a significant but short-lived peace agreement between the United States and several Plains tribes. European-American settlement accelerated with the establishment of the Chisholm Trail, which crossed the river, and the founding of Wichita in the 1870s. The river's periodic floods shaped early urban development, leading to major engineering projects in the 20th century, including the construction of Cheney Dam in the 1960s.

Watershed and hydrology

The Little Arkansas River basin encompasses approximately 1,200 square miles of central Kansas, primarily within the Wellington Formation and the Arkansas River Lowlands. Major tributaries include Emma Creek and Dry Creek. The hydrology is heavily influenced by the Cheney Reservoir, which controls flows for water supply and flood mitigation for the Wichita metropolitan area. Streamflow is highly variable, subject to the region's semi-arid climate, with peak flows typically occurring in spring from thunderstorm activity. Water quality has been a focus of study, with issues related to agricultural runoff and sediment transport.

Ecology

The riparian corridor supports a mosaic of habitats, including cottonwood and willow stands, which provide crucial habitat for wildlife. The river system is part of the Central Flyway, hosting numerous migratory bird species such as the Great Blue Heron and various waterfowl. Fish populations in the main stem and Cheney Reservoir include channel catfish, white crappie, and largemouth bass. Conservation efforts by organizations like the Kansas Department of Wildlife, Parks and Tourism and the Wichita Audubon Society focus on preserving these ecosystems amidst urban and agricultural pressures.

Recreation and access

Cheney State Park, located adjacent to Cheney Reservoir, offers extensive recreational opportunities including boating, fishing, and camping. Within Wichita, the Arkansas River and Little Arkansas River corridors are integrated into the city's park system, featuring the Arkansas River Trail and the Great Plains Nature Center. Public access points are maintained by Sedgwick County and the City of Wichita, with boat ramps and fishing piers available. The area around the confluence, including the Keeper of the Plains plaza, is a major cultural and pedestrian attraction.

Category:Rivers of Kansas Category:Tributaries of the Arkansas River Category:Geography of Sedgwick County, Kansas