What You'll Find at Lake Red Rock

Lake Red Rock is a 15,000-acre reservoir on the Des Moines River in Marion County, about 30 miles southeast of Des Moines. The lake holds walleye, channel catfish, flathead catfish, largemouth bass, and crappie, with walleye and catfish drawing most of the fishing pressure. The water is relatively clear in summer and fall, and the lake has a steady population of keeper-sized fish across all species. Access is straightforward — the Army Corps of Engineers manages the lake, and public boat ramps are located at several parks around the shoreline.

The lake's depth ranges from shallow flats near the upper end to deeper holes near the dam, which creates distinct fishing zones. The Des Moines River channel runs through the middle of the lake and holds structure year-round. Seasonal patterns are pronounced here: spring walleye fishing peaks in April and May, summer catfishing runs strong from June through August, and fall brings another walleye bite in September and October.

Key Takeaways

  • Walleye and catfish are the primary target species, with walleye most active in spring and fall and catfish most reliable in summer.
  • Public boat ramps are available at Cordova Park, Overlook Park, and other Corps of Engineers access points around the lake.
  • Iowa fishing licenses are required for all anglers 16 and older, and separate stamps are needed for walleye and catfish.
  • The Des Moines River channel and deeper holes near the dam hold fish year-round and are worth fishing even when shallow flats slow down.
  • Summer catfishing is most productive at night using live bait or stink baits near the dam and channel ledges.

Walleye Fishing in Spring and Fall

Walleye bite hardest at Lake Red Rock in April, May, September, and October. Spring walleye move shallow to spawn, and the upper end of the lake near the old river channel holds concentrations of fish in 6 to 12 feet of water. Jigs tipped with live minnows or soft plastics work well in the morning and evening; many anglers also cast crankbaits along the channel edges. The bite can be fast in low-light conditions, especially on cloudy days or at dawn.

Fall walleye fishing mirrors spring patterns but often produces larger fish. As water cools in September and October, walleye move back to deeper structure near the dam and along the main channel. Vertical jigging with live minnows in 15 to 25 feet of water is effective, and night fishing with live bait under lights can be productive. The fall bite typically lasts through mid-October before walleye move to deeper winter holding areas.

Summer Catfishing Near the Dam

Channel and flathead catfish are most active from June through August, and night fishing is the standard approach. Set up near the dam in 20 to 35 feet of water, or fish the deeper holes along the main channel. Channel catfish respond to stink baits, chicken liver, and cut shad; flatheads prefer live bluegill or shiners. Many anglers fish multiple rods and wait for the rod to load — catfish often take the bait and run, so a sensitive setup helps.

Daytime catfishing is slower but possible in the deepest holes. Early morning and late evening produce better results than midday. Some anglers have success fishing the shallower flats at dusk when catfish move up to feed. Bring a headlamp and insect repellent if you plan to fish after dark; the shoreline can be buggy in midsummer.

Bass and Crappie in Spring and Early Summer

Largemouth bass are present throughout the lake but are not the primary draw. They respond to soft plastics and topwater lures around shallow cover in spring, and deeper structure in summer. The upper end of the lake and areas with fallen timber hold the most bass. Crappie fishing peaks in April and May when fish move to shallow water to spawn; small jigs or live minnows near brush piles and downed trees produce consistent results.

Both species slow considerably in midsummer heat. Early morning and evening trips are more productive than midday outings. Fall can bring another brief crappie bite in September, though walleye and catfish typically dominate angler attention by then.

Access Points and Facilities

Cordova Park is the primary public access point on the north shore and has a full-service boat ramp, parking, and restroom facilities. Overlook Park on the south shore also has a ramp and is less crowded than Cordova. Both parks charge a day-use fee (typically a few dollars) and are open year-round. The Army Corps of Engineers maintains these facilities, and they are generally well-kept.

Several other smaller access areas exist around the lake, though not all have developed ramps. Check the Red Rock Lake website or call the visitor center before heading out if you are unfamiliar with a specific location. Fuel and supplies are available in nearby towns like Pella and Knoxville, but it is wise to fill up before arriving at the lake.

Regulations and Licensing

Iowa fishing licenses are required for all anglers 16 and older. A resident annual license covers most species, but walleye and catfish require separate stamps. The walleye stamp and catfish stamp are sold together or separately and are inexpensive add-ons to a base license. Licenses can be purchased online through the Iowa Department of Natural Resources website, at sporting goods stores, or at some convenience stores near the lake.

Bag limits and size restrictions vary by species and change annually. Walleye typically have a daily limit of 5 fish with a 15-inch minimum; catfish limits are often higher. Check the current Iowa fishing regulations before you fish, as rules can shift year to year. The DNR publishes a free regulations booklet available online and at license vendors.

When to Fish and What to Expect

Spring (April–May) is the busiest season and offers the best walleye bite. Expect moderate to heavy boat traffic on weekends. Summer (June–August) brings warm water and strong catfish activity, with night fishing being the norm. Fall (September–October) offers another excellent walleye window and fewer crowds than spring. Winter fishing is possible but less popular; the lake does not typically freeze solid enough for safe ice fishing.

Water clarity is generally good, especially in fall. Summer algae blooms can occur but are usually not severe enough to shut down fishing. Wind can make the lake rough, particularly in spring and fall; check the forecast before launching. The lake is large enough that you can find calmer water on the lee shore if the main basin is choppy.

Frequently Asked Questions

What is the best time of year to fish Lake Red Rock?

Spring (April–May) and fall (September–October) offer the most consistent walleye fishing and are the most popular times. Summer is best for catfish, especially at night. Winter fishing is possible but less productive and less common.

Do I need a boat to fish Lake Red Rock?

A boat is not required. Shore fishing is possible at several parks and access areas, though boat fishing gives you access to deeper structure and more productive zones. Many anglers fish from the bank near Cordova Park with reasonable success.

What size fish can I expect to catch?

Walleye typically range from 14 to 20 inches, with occasional fish over 24 inches. Channel catfish average 2 to 5 pounds, and flatheads can reach 20 pounds or more. Bass are generally 12 to 16 inches. Crappie run 8 to 11 inches on average.

Can I fish at night?

Yes. Night fishing is common and productive, especially for catfish. Bring a headlamp and be aware of other boats. Some anglers fish under lights to attract baitfish and catfish, though this requires a generator or battery-powered light setup.

How far is Lake Red Rock from Des Moines?

Lake Red Rock is approximately 30 miles southeast of downtown Des Moines, about a 45-minute drive. Take Highway 92 or Highway 163 toward Pella to reach the main access points.