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Brook Trout

Brook Trout

Brook trout in South Dakota are found exclusively in the cold water habitats of small headwater streams in the Black Hills region.

They are not native to South Dakota, having been introduced since 1886, but now maintain self-sustaining populations through natural reproduction in nearly all suitable habitat throughout the Black Hills' 1,287 kilometers of streams.

Physical Characteristics:
  • Brook trout have streamlined, torpedo-shaped bodies with small scales and large mouths.
  • They display distinctive olive-green to brown coloration with light, wormlike markings (vermiculation) that fade to light spots on the sides, often featuring red spots circled by blue halos.
  • The leading edges of pelvic, pectoral and anal fins are white backed by black lines.
  • Breeding males develop vibrant red/maroon bellies and fins.

What to know

Habitat Distribution

  • They primarily inhabit small streams and creeks within the Black Hills National Forest.
  • They prefer areas with groundwater seepage and are often found in the headwater reaches of Black Hills streams.

Key Locations

  • Target the headwater streams and small creeks throughout the Black Hills, particularly Box Elder Creek which shows higher brook trout populations, along with tributaries like Little Elk Creek Canyon, Spring Creek, Battle Creek, Beaver Creek, Iron Creek, and Stockade Beaver Creek.
  • Box Elder Creek showing higher brook trout abundance compared to other area waters like Rapid Creek.

Specific Spots

  • Target deeper pools, undercut banks, areas with cover like fallen timber, and anywhere groundwater seepage occurs.

Brook Trout FAQ

Answers from onWater's species guide.

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

For conventional tackle, use small spinners (size 3 Mepps Aglia in brown trout patterns work well), small vibrating lipless crankbaits like the 1/8 oz Eurotackle Z-Viber, and paddle tail swimbaits such as the 2-inch B-Vibe on tungsten jig heads.

What flies work for Brook Trout in South Dakota?

Productive fly patterns include dry flies like Adams Parachute, terrestrials such as ants, crickets, and hoppers, along with nymphs and small streamers like woolly buggers and muddler minnows.

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

The best time to fish for brook trout in South Dakota is during spring and fall when water temperatures are optimal, with early morning and evening being most productive during warmer months. Avoid fishing during their fall spawning period (September-November) when they are constructing redds in gravel areas.

How do you catch Brook Trout in South Dakota?

Fly fishing is highly effective, especially during insect hatches in spring and fall. Fish these lures with slow presentations in cold water, using jigging motions off the bottom.

What do Brook Trout eat?

They feed primarily on insects and crustaceans, with their diet consisting of terrestrial and aquatic insects, fry, crustaceans, zooplankton, and worms.

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