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Flathead Catfish

Flathead Catfish

Flathead Catfish are non-native to Wyoming but have established limited populations in specific waters. These massive predators are primarily piscivorous and are solitary fish that occupy specific territories.

Scientific Name: Pylodictis olivaris

Physical Characteristics:
  • Easily distinguished by their wide, flattened head, projecting lower jaw, and yellowish to purple-brown coloration with pale white to yellow belly.
  • These massive predators can reach over 50 pounds.

What to know

Habitat Distribution

  • Found in the North Platte River system near Torrington close to the Nebraska border, and in some areas of Flaming Gorge Reservoir on the Green River.

Key Locations

  • North Platte River system near Torrington close to the Nebraska border, and in some areas of Flaming Gorge Reservoir on the Green River.

Specific Spots

  • Fish near structure including submerged logs, rocky areas, riprap, undercut banks, and deep holes with current.
  • They prefer deep pools with cover such as logs, boulders, undercut banks, and rocky structure during the day, moving to shallower areas to feed at night.
  • At Flaming Gorge Reservoir, fish cut bait on breaklines between rocky drops and muddy flats, focusing on areas with submerged timber and deep-water structure.

Flathead Catfish FAQ

Answers from onWater's species guide.

What are the best lures and bait for Flathead Catfish in Wyoming?

Live bait is essential - large live baitfish like bluegill, sunfish, or bullheads (where legal). Fresh cut bait from oily fish can also be effective.

When is the best time to fish for Flathead Catfish in Wyoming?

Late spring through fall, with September and October being prime months. Avoid fishing during spawning periods in June-July when males are guarding nests and feeding is minimal. Become mostly inactive when water temperatures drop below 50°F.

How do you catch Flathead Catfish in Wyoming?

Hook large live baitfish just behind the dorsal fin and allow them to swim naturally. Present baits either on the bottom using slip sinker rigs with 12-20 inches of leader, or suspend live bait under large floats in 3-5 feet of water during nighttime feeding periods.

What do Flathead Catfish eat?

Primarily piscivorous, feeding almost exclusively on live fish including sunfish, bullheads, carp, and other catfish once they exceed 10 inches in length. Juveniles consume crayfish, insects, and aquatic invertebrates.

Where do Flathead Catfish live in Wyoming?

Found in the North Platte River system near Torrington close to the Nebraska border, and in some areas of Flaming Gorge Reservoir on the Green River.

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