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Rainbow Trout

Rainbow Trout

Rainbow Trout in South Dakota are non-native fish introduced in the early 1900s that have become a cornerstone of the state's coldwater fishery.

Physical Characteristics:
  • They feature torpedo-shaped bodies with small scales, abundant dark spots evenly distributed across their light-colored head, body and fins, and distinctive pink or red lateral stripes.

What to know

Habitat Distribution

  • They are found exclusively in cold water habitats including streams, ponds, impoundments, and the tailwaters of Missouri River dams.
  • This restricts them mainly to the Black Hills region and select Missouri River tailwaters.

Key Locations

  • They're primarily stocked in Black Hills waters like Pactola Reservoir, Deerfield Reservoir, Sheridan Lake, Rapid Creek, Spearfish Creek, Castle Creek, and various small impoundments statewide for put-and-take fisheries.
  • A small self-sustaining population exists in Spearfish Creek.
  • Urban waters like Rapid Creek within Rapid City offer excellent access.

Specific Spots

  • fish bright, flashy colors near structure in deeper reservoir waters.

Rainbow Trout FAQ

Answers from onWater's species guide.

What are the best lures and bait for Rainbow Trout in South Dakota?

rainbow fire bait, green label salmon e.g.gs, and Fire Neds (shortened for better hook-ups). Fire bait consistently outperforms other baits in stocked waters, staying on hooks better than traditional dough baits.

What flies work for Rainbow Trout in South Dakota?

Effective patterns include Pheasant Tail Nymphs, Woolly Buggers, Elk Hair Caddis (size 18), Prince Nymphs, Blood Midges, and Caddis flies. Larger streamers, minnow patterns, and crayfish imitations work well in deeper reservoir waters - fish bright, flashy colors near structure.

When is the best time to fish for Rainbow Trout in South Dakota?

The best rainbow trout fishing in South Dakota occurs from March through November, with peak activity during spring and fall when water temperatures are optimal. Terrestrial season (August-September) is excellent using grasshopper and beetle patterns.

How do you catch Rainbow Trout in South Dakota?

In lakes like Sheridan, Pactola, and Deerfield reservoirs, troll or still-fish. Urban waters like Rapid Creek within Rapid City offer excellent access for beginners using worms under bobbers or small spinners.

What do Rainbow Trout eat?

Their diet consists primarily of insects and crustaceans, with larger individuals consuming small fish.

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