Little Sioux River

Dickinson County, Clay County, Cherokee County, Buena Vista County, Woodbury County, Monona County, Harrison County · 234 mi · Class III
Optimal: 425–1300 CFS · USGS #06605850
860 avg
377CFS
6.21 ft gauge height
Below Optimal
Stable
Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
⏳ Loading live storm reports for IANWS · SpotterNet
As an Amazon Associate, RiverScout earns from qualifying purchases. Book links on this site are affiliate links — clicking through and buying supports our river coverage at no extra cost to you.
Avg flow: 860 cfsHist. median: 0 cfsUSGS #06605850
Designated Water Trail · State

About

Little Sioux River, Iowa — 1804 Lewis Clark, 1840s-1880s Logging, 1990s-2010s Little Sioux Trail 100-mi Correctionville. Long before European contact, the Little Sioux ran through the ancestral territory of the Meskwaki (Fox), the Sauk, the Ioway, the Dakota, the Omaha, the Ponca, the Ho-Chunk (Winnebago), and the Missouri. The river served as a primary travel corridor, a hunting ground, and a gathering place. That connection endures: the Meskwaki Settlement, established in 1857, remains the only federally recognized Native American settlement in Iowa, and the Meskwaki Nation is a present-day partner in the river's restoration.

In 1804 Lewis and Clark traced the river's lower valley near its confluence with the Missouri, and the expedition anchored the corridor's recorded history. The settlement that took the river's name grew up along this stretch, and its endurance is written into Murray Hall, built in 1877 and now listed on the National Register of Historic Places. Nearby stand the Loess Hills State Forest and Preparation Canyon State Park, framing the Missouri River Valley that the expedition crossed.

For most of a century the Little Sioux was a working landscape. It was logged from the 1830s through the 1920s to supply Iowa's hardwood industry — oak, hickory, walnut, maple, elm, cottonwood, and ash cut along the state's rivers and streams. The exhaustion of the old-growth stands around 1910, the start of state forestry conservation in 1915, and the establishment of state forests in the 1930s together brought the large-scale cutting to an end. During the same span, the first comprehensive study of the river's water began with the USGS Iowa Survey of the 1870s, followed by later Iowa Geological Survey streamflow work.

The modern river took shape after the Army Corps of Engineers raised the Little Sioux Dam in 1964, roughly four miles northeast of town, to manage a restless flow. Downstream and up, the numbers tell the paddler's story: gauge 06605850 averages 860 cfs, and the optimal running window sits between 425 and 1,300 cfs. Since 2010, the Iowa DNR — working with the Little Sioux Watershed partnerships and the Meskwaki Nation — has addressed more than a century of logging, agricultural, and industrial impacts. That effort has included streambank stabilization from 2015 to 2024 and native fish restocking from 2017 to 2024, returning smallmouth bass and channel catfish to the water.

Today the Little Sioux is best known as a recreational artery. The Iowa DNR designated the Inkpaduta Canoe Trail — a State-designated Water Trail — for paddlers tracing the river's bends, and the river's flow supports the Correctionville, Spencer, and Algona economies. Community life still gathers at the water's edge each summer at the Little Sioux Homecoming, held on the fourth weekend in August, a weekend of parade, carnival, dance, and barbecue that keeps the river's small-town legacy current. The same waters that once guided explorers now anchor the towns that grew up along them.

Solunar Fishing Activity
🌒
Waxing Crescent
26% illumination
Poor
Moon overhead
10:45 AM
Moonrise
5:05 PM
Moonset
4:24 AM
Moon underfoot
10:45 PM
Next full moon: Jul 2910 days
10-Year Flow Patterns
See 10 years of flow patterns for this river — historical analysis is a Pro feature.Upgrade to Pro →
Your Optimal Range
Set your personal optimal CFS window per river — custom ranges are a Pro feature.Upgrade to Pro →
Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

Know the Little Sioux River? Your local knowledge makes this page better for every paddler, angler, and guide who comes after you.
Improve This River →