What to expect at Mary Jane Thurston State Park

Mary Jane Thurston State Park sits along the Maumee River in the northwest corner of Ohio, near the town of Grand Rapids. The park is small — about 50 acres — but it holds steady populations of channel catfish, flathead catfish, and largemouth bass. The Maumee is a working river with barge traffic and industrial shoreline mixed in with public access points, so this is not a remote wilderness experience. What it offers instead is reliable fishing within an hour of Toledo, with a boat launch, parking, and basic facilities already in place.

The park itself is day-use only; there is no camping. Most anglers fish from the bank or launch a boat to work the deeper channel. The Maumee moves slowly here, and the water is often stained brown from upstream runoff, which actually helps catfish fishing because they hunt by smell and feel rather than sight. Spring and fall tend to be the most productive seasons, though summer night fishing for catfish can be excellent if you can tolerate the heat and humidity.

Key Takeaways

  • Mary Jane Thurston State Park has a public boat launch and bank access along the Maumee River, with parking and restroom facilities available during daylight hours.
  • Channel catfish and flathead catfish are the primary target species, with largemouth bass present but less consistent than in dedicated bass lakes.
  • Spring and fall offer the most reliable fishing, though catfish bite well at night during summer months.
  • The park is day-use only with no overnight camping, and you will need an Ohio fishing license valid for the dates you plan to fish.

Boat launch and access at the park

The park has a single concrete boat launch suitable for small to medium-sized boats. There is a parking area near the launch, though it fills on weekends during spring and fall. The launch fee is included with park entry; you pay at the entrance station when you arrive. The ramp itself is in decent condition but can be slippery when wet, so wear appropriate footwear and take your time backing down.

Bank fishing is also possible along the park's shoreline. A walking path runs along part of the river, and several spots offer good casting distance into the channel. The bank is mostly grassy with some tree cover, so you can fish in shade during hot months. Parking for bank anglers is separate from the boat launch lot, and both areas have restroom facilities. The park closes at dusk, so plan your trip accordingly if you want to fish evening hours.

Catfish fishing in the Maumee River

Channel catfish are the bread-and-butter species at Mary Jane Thurston. They range from 1 to 5 pounds on average, with occasional fish pushing 10 pounds. They are most active in spring (April through May) and fall (September through October), when water temperatures are moderate and they feed aggressively. Summer fishing is possible but slower during daylight; night fishing with live bait or stink bait produces better results when the water warms.

Flathead catfish have become increasingly common in the Maumee over the past decade. These fish are larger and more aggressive than channel cats, often reaching 20 to 40 pounds. They prefer live baitfish — shiners, shad, or bluegill — and hunt primarily at night. If you want to target flatheads, plan an evening trip with live bait and be prepared for a powerful fight. Flatheads are also more selective about bait than channel cats, so live offerings work much better than cut bait or prepared stink bait.

For channel catfish, use chicken liver, cut shad, or commercial catfish bait. Fish on the bottom in deeper holes along the channel, and use a three-way rig or simple slip sinker setup to keep your bait near the riverbed. Catfish in the Maumee are not particularly finicky, so basic rigs work fine. Bring multiple rods if regulations allow so you can cover more water and increase your chances of connecting.

Largemouth bass and other species

Largemouth bass are present in the park's section of the Maumee, but they are not as abundant or as large as in dedicated bass lakes elsewhere in Ohio. Most bass here run 1 to 3 pounds, with occasional fish reaching 4 to 5 pounds. They tend to concentrate around fallen trees, brush piles, and the deeper channel edges. Spring is the best season for bass, particularly during the pre-spawn and spawn periods in April and May.

Use soft plastics, crankbaits, or topwater lures in early morning or late evening for the best results. The stained water means bass rely more on vibration and lateral line detection than sight, so lures with good action and noise work better than subtle presentations. Fishing the deeper channel with a drop shot or Carolina rig can also produce, especially if you are patient and willing to work the same area thoroughly.

White crappie and bluegill are also present but are not the primary draw for most anglers visiting the park. If you want to fish for panfish, spring is again the best season, and small jigs or live minnows will take fish consistently.

Seasons and water conditions

Spring (April through May) is the peak season at Mary Jane Thurston. Water temperatures climb into the 50s and 60s, catfish become very active, and bass move shallow to spawn. The Maumee can run high and fast during spring if there has been significant rainfall upstream, which actually improves fishing by stirring up the bottom and triggering feeding activity. Expect the park to be busy on weekends during this window.

Summer (June through August) is slower for daytime fishing but can be productive at night. Water temperatures exceed 75 degrees, and fish move to deeper, cooler water during the day. Catfish bite well after dark, especially on live bait. The park is less crowded during summer weekdays, so if you can fish at night or early morning, you may have the place nearly to yourself.

Fall (September through October) is the second-best season. Water temperatures drop back into the comfortable range, catfish feed heavily in preparation for winter, and bass become active again. The park is busy but not as crowded as spring. By November, fishing slows considerably as water temperatures drop below 50 degrees.

Winter fishing is possible but slow. The Maumee rarely freezes solid, so bank and boat access remain available. Catfish bite sporadically on live bait, but most anglers do not bother during this season.

Regulations and licensing requirements

You must have a valid Ohio fishing license to fish at Mary Jane Thurston State Park. Licenses are sold online through the Ohio Division of Wildlife website, at most sporting goods stores, and at some bait shops near the park. A one-day license costs less than a full-year license if you are only planning a single trip. Licenses are required for anyone 16 and older.

Catfish have no special restrictions in this section of the Maumee — you can keep what you catch up to the daily limit. Ohio's current daily limit for catfish is 25 fish per person, with no size minimum. Bass are subject to a 5-fish daily limit with a 12-inch minimum length. Check the current Ohio fishing regulations before you go, as rules can change year to year.

The park itself charges a day-use entrance fee, separate from your fishing license. The fee is modest and is collected at the entrance station. Hours are typically sunrise to sunset, so plan your trip accordingly. No overnight camping is allowed at Mary Jane Thurston.

Getting there and nearby services

Mary Jane Thurston State Park is located near Grand Rapids, Ohio, about 20 miles south of Toledo. From Toledo, take US-24 south toward Findlay, then follow signs to the park. The drive from downtown Toledo takes roughly 30 to 40 minutes depending on traffic. Parking is free once you pay the day-use entrance fee.

The nearest town with services is Grand Rapids, which has a few restaurants and a small grocery store. For more substantial shopping or dining, Toledo is the closest city. There are no bait shops directly at the park, so bring your own bait or stop at a tackle shop in Toledo before you arrive. Several bait and tackle shops operate in the Toledo area and can supply live baitfish, cut bait, and catfish stink bait.

The park has restroom facilities but no food service or concessions. Bring water, snacks, and any supplies you will need for the day. In summer, bring sunscreen and insect repellent — mosquitoes can be heavy near the river.

Frequently Asked Questions

Can I fish at night at Mary Jane Thurston State Park?

The park closes at dusk, so you cannot fish after dark. If night fishing is important to your plans, you will need to look at other Maumee River access points or lakes in the region that allow 24-hour fishing. Check with the Ohio Division of Wildlife for alternative locations.

Do I need a boat to fish here, or can I fish from the bank?

Bank fishing is available and productive, especially for catfish. You do not need a boat. The walking path along the park's shoreline offers several good casting spots, and bank anglers often do as well as or better than boat anglers, particularly in spring and fall.

What is the best bait for catfish at this park?

Chicken liver and cut shad work well for channel catfish. For flathead catfish, live baitfish — shiners, shad, or bluegill — are much more effective. Bring multiple bait options so you can adjust based on what is working on the day you fish.

Is Mary Jane Thurston a good spot for beginners?

Yes. The park has good facilities, reliable catfish populations, and straightforward fishing methods. Catfish do not require advanced technique, and the Maumee's stained water means fish are not as sight-sensitive as in clear lakes. Bank access and a boat launch make it easy to get your free guide.

What should I bring for a day trip to the park?

Bring a fishing license, sunscreen, water, snacks, bait, and appropriate rods and tackle for your target species. In summer, bring insect repellent. The park has restrooms but no food service, so plan accordingly. If you are launching a boat, arrive early on weekends because the lot can fill.