What Lake Audubon offers anglers
Lake Audubon is a shallow, 9,400-acre reservoir in central North Dakota that holds walleye, northern pike, and perch. The lake sits near Coleharbor, about 70 miles north of Bismarck, and draws anglers who want to fish a big prairie impoundment without the crowds of the state's most famous walleye lakes. The water is murky and productive—typical of Missouri River system reservoirs—which means fish don't need to go deep to find food, and you don't need to fish deep to find them.
The lake's shallow character shapes everything about how you fish it. Average depth runs around 20 feet, with a maximum near 45 feet. Walleye here spend much of the year in 8 to 15 feet of water, especially over the mud and silt bottom that covers most of the lake. Pike roam the shallower flats and weed edges. Spring and fall are the most reliable seasons—walleye bite hard in May and again in September and October when water temperatures drop. Summer fishing is possible but slower, as fish move to deeper holes and feed at dawn and dusk.
Key Takeaways
- Lake Audubon holds walleye and northern pike in shallow water over mud bottom, with average depths around 20 feet.
- Spring (May) and fall (September–October) produce the most consistent walleye action; summer requires early morning or evening fishing.
- The lake has public access at Audubon Bay and Coleharbor, with boat ramps, parking, and basic facilities at both.
- Jigs tipped with live minnows and crankbaits work year-round; trolling and casting are both effective depending on the season.
- A North Dakota fishing license is required; walleye and pike have separate bag limits and size restrictions that change annually.
Public access points and where to launch
Audubon Bay is the primary public access area and sits on the south shore of the lake. The ramp is concrete, well-maintained, and can handle most trailer boats. Parking is ample, and the facility includes vault toilets and a small picnic area. From Coleharbor, take Highway 200 west and follow signs to the bay—it's about 15 minutes from town.
Coleharbor itself offers a second access point with a boat ramp and parking, though it's smaller and less developed than Audubon Bay. Both ramps are free to use. The lake has no marinas or fuel docks, so fill your tank before you arrive. Cell service is spotty across the lake, so tell someone where you're going and when you expect to return.
Walleye fishing tactics and timing
Spring walleye fishing at Lake Audubon begins in late April as the ice goes out and peaks in May. Fish move shallow to spawn and feed aggressively. Jigs in the 1/4- to 3/8-ounce range tipped with live minnows (shiners or chubs) work best along the mud flats in 6 to 12 feet of water. Cast toward structure—old channel breaks, slight rises on the bottom, or areas where creeks enter the lake. Work the jig slowly, letting it bounce along the bottom.
Fall fishing, from mid-September through October, rivals spring for consistency. Water cools, walleye move back to shallow feeding zones, and bite windows extend throughout the day. The same jig-and-minnow approach works, but you can also troll crankbaits (shad-pattern plugs in the 2- to 3-inch range) along the same flats. Summer fishing is tougher—fish move deeper and bite best at first light or after sunset. Focus on the deepest holes you can find and fish live minnows on slip sinkers rather than jigs.
Northern pike and panfish opportunities
Northern pike at Lake Audubon average 24 to 28 inches, with fish over 35 inches caught regularly. Pike prefer shallower water than walleye and hunt the weed edges and flats in 4 to 10 feet. Casting large crankbaits (3 to 4 inches), spinnerbaits, or soft plastics works well. Early morning and late evening are most productive, though pike will bite throughout the day if you fish the right cover.
Perch are abundant and often overlooked. They school in 15 to 25 feet of water and bite readily on small jigs or live minnows. A perch bite can be fast and fun, especially if walleye are slow. Perch average 8 to 10 inches and make excellent table fare—many anglers keep a few for a shore lunch.
Weather, water conditions, and seasonal patterns
Lake Audubon's shallow depth means wind has a big effect on fishing. A strong wind stirs the bottom and can shut down the bite, but a light to moderate wind often improves it by pushing baitfish and creating current. Cloudy days are often better than bright sun, especially in summer when the water is clear enough to spook fish in shallow areas.
Water clarity varies by season. Spring runoff can make the lake turbid, which actually helps walleye bite because they rely less on sight. By mid-summer, the water clears somewhat, and fish become more cautious. Fall turnover (usually late September into October) can create a brief period of poor fishing as the water column mixes, but it passes quickly and fishing improves as water temperature stabilizes.
Regulations, licensing, and what to bring
You need a current North Dakota fishing license to fish Lake Audubon. Licenses are available online through the North Dakota Game and Fish Department website, at sporting goods stores in Coleharbor and Bismarck, or at the access areas. Walleye and pike have separate bag limits and minimum size requirements that vary by year—check the current regulations before you fish.
Bring sunscreen, a hat, and water. The prairie offers no shade, and the sun reflects hard off the water. A depth finder is valuable on a lake this large and shallow—it helps you locate the mud flats and channel breaks where fish hold. Live minnows are your best bet for bait; bring a bait bucket with an aerator or plan to catch shiners in the shallows. If you're launching from Audubon Bay, arrive early on weekends—parking fills up during peak season.
Nearby waters and alternative options
If Lake Audubon is crowded or the bite is slow, several other North Dakota reservoirs sit within an hour's drive. Lake Sakakawea, about 90 miles north, is larger and deeper but also more famous and busier. Garrison Dam tailrace, just below Sakakawea, holds walleye and offers a different fishing experience in moving water. Smaller lakes like Willow Lake and Parkers Lake near Washburn offer quieter alternatives with similar fish populations.
The Missouri River itself runs through central North Dakota and holds walleye, pike, and catfish. The river fishes differently than the reservoirs—current, snags, and deeper holes require different tactics—but it's worth exploring if you want variety or if the lakes are too crowded.
Frequently Asked Questions
What's the best time of year to fish Lake Audubon?
May and September through October are most reliable for walleye. Spring fishing is fast and aggressive as fish move shallow to spawn. Fall offers consistent action as water cools and fish feed heavily before winter. Summer is possible but requires fishing early morning or evening and focusing on deeper holes.
Do I need a boat to fish Lake Audubon?
A boat is helpful because the lake is large and fish are spread across shallow flats. Shore fishing is possible near the access areas, but you'll have better success and more options with a boat. Kayaks and small johnboats work well on this shallow water.
Are there services or facilities at the lake?
Audubon Bay has vault toilets and parking. There are no fuel docks, restaurants, or lodging at the lake itself. Coleharbor, 15 minutes away, has a few small businesses and a motel. Bismarck, 70 miles south, has full services including tackle shops, hotels, and restaurants.
What size fish can I expect to catch?
Walleye average 16 to 20 inches, with fish over 24 inches caught regularly. Pike average 24 to 28 inches. Perch run 8 to 10 inches. These are solid fish for a prairie reservoir, though Lake Audubon is not known for trophy-sized walleye.
Can I fish Lake Audubon in winter?
Yes, ice fishing is popular from December through February. The lake freezes solid, and anglers fish walleye and pike through holes in the ice. Winter fishing requires different gear and techniques, and you should check ice thickness and current conditions before heading out.