Flathead Chub

Terrestrial imitations such as ants (black, amber, and purple), beetles, and hopper patterns, especially during late summer. Small nymphs that imitate aquatic insects work well, particularly prince nymphs, pheasant tail nymphs, and small mayfly patterns.

Late spring through early fall, with summer months being particularly productive. Avoid fishing during their spawning period from mid-June through July to protect reproducing populations. During high water periods in spring, focus on slower edge waters and protected areas.

Target main channel areas with moderate current, particularly around structure like rock outcroppings, drops, and areas where side channels meet the main river. Focus on water depths from shallow to moderately deep.

Omnivorous, feeding primarily on terrestrial insects and small aquatic invertebrates, with heavy seasonal use of terrestrial insects that blow into rivers. They also consume some plant material and occasionally small fish.

Found throughout the Missouri-Yellowstone River complex in the plains and foothill streams of eastern Montana. The species is found in over 10,000 miles of Montana streams and rivers.