What the Little Missouri River offers anglers

The Little Missouri River in northwestern North Dakota is a warmwater and coolwater fishery that runs roughly 560 miles from Montana through the badlands to its confluence with the Missouri River near Williston. You'll find walleye, northern pike, smallmouth bass, and channel catfish in different sections, with walleye being the primary target for most anglers. The river's character changes dramatically from its upper reaches—narrow, rocky, and fast—to the lower impoundments and slower pools where the bigger fish hold.

What makes the Little Missouri distinct from other Midwest rivers is its badlands setting and the way water levels fluctuate with snowmelt and dam releases. Spring runoff can make the river unfishable for weeks, but summer and fall offer stable conditions and predictable fishing patterns. The river is less crowded than the Missouri mainstem and offers a genuine sense of solitude, especially if you're willing to wade or float the middle sections.

Key Takeaways

  • Walleye fishing peaks in spring (April through May) and fall (September through October) when water temperatures stabilize and fish move into shallower feeding zones.
  • The lower river near Williston holds the largest walleye and pike, while the upper sections near Marmarth offer smaller fish but less pressure and easier access.
  • Water levels rise sharply during spring runoff, making the river dangerous and unfishable; check the U.S. Geological Survey gauge at Marmarth before planning a trip.
  • You can fish from shore at numerous public access points, but floating the river requires a boat or canoe and knowledge of current, snags, and shallow bars.
  • North Dakota fishing licenses are required; a one-day license costs less than a full-season license and is available at most bait shops and online through the North Dakota Game and Fish Department website.

Spring walleye fishing in the upper and middle river

April and May are prime months for walleye on the Little Missouri, especially in the upper sections between Marmarth and Watford City. As water temperatures climb from the low 40s toward the mid-50s, walleye move out of the deepest holes and into shallower flats and current breaks. Jigs tipped with live minnows or soft plastics work best during this window—cast along the outside bends where the current has carved deeper pools, and work the edges where fast water meets slack water.

The Marmarth area is the most accessible starting point. The town sits on the river and has several public access points managed by the North Dakota Game and Fish Department. Water levels are typically high in April, so focus on slower pools and eddies rather than trying to wade the main current. By late May, as flows drop, you can wade the shallower bars and fish the drop-offs more effectively. Bring a thermometer—walleye bite most aggressively when water sits between 48 and 58 degrees.

Summer conditions and the shift to pike and catfish

By June, water temperatures climb into the 60s and walleye bite slows considerably. The river becomes more of a pike and catfish fishery during summer months. Northern pike are aggressive in the warmer water and will chase larger lures and live baitfish. Fish the weed beds and woody cover along the banks, especially in the slower pools where vegetation can establish. Casting large spinnerbaits or crankbaits along the edges of current breaks will draw strikes from pike in the 18- to 26-inch range.

Channel catfish are also active in summer and respond well to cut bait—shad, herring, or chicken liver fished on the bottom in deeper holes. The lower river near Williston and the impoundments created by small dams hold the most catfish. Night fishing is often more productive than daytime, and you can fish from shore at most access points without a boat. Catfish don't require the precision of walleye fishing, making summer a good time to bring less experienced anglers or to fish more casually while enjoying the badlands landscape.

Fall walleye and the second peak season

September and October bring the second walleye bite of the year. Water temperatures drop back into the 50s, and walleye move back into shallower feeding zones as they prepare for winter. The fall bite is often more aggressive than spring because fish are feeding heavily to build fat reserves. Jigs and live minnows work well, but you can also catch walleye on crankbaits and soft plastics worked along the current breaks and drop-offs.

Fall water levels are typically lower and more stable than spring, making wading easier and safer. The Marmarth and Watford City sections are again the most productive, though the lower river near Williston also fishes well. October can be exceptional—the water is cool, the air is clear, and the badlands landscape is at its most dramatic. Plan for shorter daylight hours and fish the early morning and late afternoon when walleye are most active.

Access points and how to reach the river

The North Dakota Game and Fish Department maintains public access areas at several points along the Little Missouri. The Marmarth area has the most developed access, with parking and boat ramps near town. Watford City, roughly 50 miles downstream, also has public access and is a good base for fishing the middle river. The lower river near Williston has access points as well, though the landscape becomes less dramatic as you move toward the Missouri River confluence.

If you plan to float the river, you'll need a boat or canoe and should scout the section beforehand or fish with someone familiar with it. The river has snags, shallow bars, and current that can surprise anglers unfamiliar with it. Spring runoff can create dangerous conditions—never float during high water. Shore fishing is safer and requires only a valid North Dakota license and access to public land or permission from private landowners. Many anglers fish from the road shoulders where the highway crosses the river, though you should always ask permission before crossing private property.

Water levels, weather, and seasonal planning

The Little Missouri's water level is the single most important factor in planning a trip. Spring snowmelt typically peaks in April, making the river high, cold, and often unfishable. The U.S. Geological Survey maintains a real-time gauge at Marmarth that shows current flow and water temperature. Check this gauge before you leave home—if flow is above 500 cubic feet per second, the river is likely too high for safe wading or floating.

Summer heat can also affect fishing. By July and August, water temperatures often exceed 70 degrees, and walleye retreat to the deepest holes or become inactive. This is the slowest time on the river for walleye fishing. Fall and spring offer the most consistent action, though spring requires patience with high water and cold temperatures. Winter fishing is possible but limited—the river can freeze in the upper sections, and access becomes difficult. Most anglers focus on spring through fall.

Gear, tackle, and what to bring

For walleye, a 6- to 7-foot medium-action spinning rod with 8- to 10-pound braided or monofilament line is standard. Jigs in the 1/8- to 1/4-ounce range work best, tipped with live minnows (shiners or chubs) or soft plastics. Crankbaits and spinnerbaits are effective for pike. For catfish, a heavier rod and 12- to 15-pound line work better, and you'll want a rod holder if you're fishing multiple lines.

Bring a net, a thermometer, and a headlamp if you plan to fish early morning or evening. Waders are essential for spring and fall fishing, and felt-soled boots help on the rocky bottom. The badlands sun is intense, so sunscreen and a hat are not optional. Insect repellent is useful in summer. A current map or GPS unit is valuable if you're floating, and a life jacket is required by North Dakota law if you're in a boat.

Frequently Asked Questions

What's the best time of year to fish the Little Missouri?

April through May and September through October offer the most consistent walleye fishing. Spring water is cold and levels are high, so expect to fish slower pools and eddies. Fall water is more stable and temperatures are ideal for aggressive feeding. Summer is slower for walleye but good for pike and catfish.

Do I need a boat to fish the Little Missouri?

No. You can fish from shore at public access points and along the road where it crosses the river. A boat or canoe opens up more water, but wading and shore fishing are effective and safer if you're unfamiliar with the river. Always check water levels before floating.

Where do I get a North Dakota fishing license?

Licenses are sold at most bait and tackle shops in Marmarth, Watford City, and Williston, and online through the North Dakota Game and Fish Department website. A one-day license is available and costs less than a full-season license. You must have a license in hand before you fish.

Is the Little Missouri safe to wade?

Wading is safe during low-water periods (summer and fall) and requires caution during spring runoff. Check the USGS gauge at Marmarth before you go. The river bottom is rocky and uneven, so felt-soled boots are essential. Never wade during high water or if you're unfamiliar with the current.

What size walleye can I expect to catch?

The upper and middle river (Marmarth to Watford City) produces walleye in the 12- to 18-inch range, with occasional fish to 22 inches. The lower river near Williston holds larger walleye, with fish in the 18- to 26-inch range more common. Pike run larger overall, with 20- to 28-inch fish typical in summer.