Niangua River Fishing Guides and Conditions, Missouri

About the Niangua River

The Niangua runs north from the Lebanon area to Lake of the Ozarks, and the stretch anglers care about begins where Bennett Spring dumps roughly 100 million gallons a day into it. Bennett Spring State Park is one of Missouri’s four trout parks, and the river below the park is a real trout fishery for several miles before it warms into one of the better smallmouth floats in the state.

Bennett Spring to Prosperine, or on to Barclay, is the standard trout float. The river here is wider than the spring branch in the park and holds rainbows that have moved out of the park, plus browns that grow large in the deeper pools around Moon Valley. Below Barclay the Niangua is a warm-water river with smallmouth, largemouth, goggle-eye, and catfish, popular with canoe liveries out of Lebanon. The float from Barclay down to Highway 64 at Windyville, where the USGS gauge sits, is the one most smallmouth guides run.

The Windyville gauge reads well below the spring, so it reflects rain in the whole upper basin. Around 250 to 600 cfs is a comfortable float; below 200 the riffles get thin for a drift boat; above 1,200 the river is muddy and pushy. The trout reach near the park is buffered by the spring and stays fishable longer than the gauge suggests.

Tunnel Dam and Lake Niangua sit downstream of Windyville, and below the dam the river runs a few more miles to Lake of the Ozarks. Lebanon is the supply town for the whole river, with lodging, liveries, and fly shops within a few minutes of the park, and Bennett Spring State Park itself has a campground, cabins, and a store that stays busy from opening day through October.

Access

Bennett Spring State Park: the park access at the mouth of the spring branch is the top of the trout float.
Prosperine Access: MDC access 5 miles below the park, common trout takeout.
Barclay Access: MDC access with ramp, 4 miles below Prosperine, where the smallmouth floats begin.
Moon Valley and Lead Mine Conservation Area: mid-river accesses.
Highway 64 Access at Windyville: MDC ramp at the gauge, the usual smallmouth takeout above Lake Niangua.

Seasons

March 1: trout park opening day at Bennett Spring draws thousands; the river below the park is a quieter option.
April through June: best all-around flows for both trout and smallmouth floats.
July and August: warm water below Barclay, topwater smallmouth early and late, heavy livery traffic on weekends.
September and October: low clear water, excellent wade fishing, park closes to regular season at the end of October.