Tailwater · Limestone · Montana

Missouri River

Missouri River venue image
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The Missouri below Holter Dam at Craig fishes like a spring creek the size of a real river — huge, fertile, stable year-round, and stuffed with rainbows and browns.

Species

About as good as it gets

River steady at a fishable height. About as fair as it ever gets — go properly.

75% confidence in this read
Water temperature for brown trout
Ideal
12.2°Cideal 1016°C
0°14°28°
Why this score · for brown trout
  • Temperature10028% weight
  • Flow8022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Insect activity6212% weight
Conditions
Level
0.77 m
Water temp
12.2°C
Clarity
Clear
Air temp
19°C
Wind
N 12 km/h
Gentle breeze
Pressure
1012 hPa
Rain · 48h
0.9 mm
No meaningful rain
Rain · ahead
0.0 mm
No meaningful rain · next 48h

Live readings only. Trends shown where the gauge supports them.

How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though time of day could be better.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • Open all year (tailwater)
  • Fishability tracks the Holter Dam release; shifting weed beds move the drift lanes.
Directions
About this water

The Missouri below Holter Dam at Craig fishes like a spring creek the size of a real river — huge, fertile, stable year-round, and stuffed with rainbows and browns. The hatches are the kind you tell stories about: Baetis, PMD, caddis, and Trico, in their seasons, often all at once. The flow comes off Holter, not the clouds. Locals call the stretch the 'Land of Giants,' and on a good day you'll understand why.

Under the surface

The Missouri proper is born at Three Forks where the Madison, Jefferson and Gallatin come together, but the river fly-fishers love runs below Holter Dam near Craig, a tailwater the size of a small sea. This is enormous water — a quarter-mile wide in places, deep and even, sliding across open prairie-and-canyon country with a steady, dam-governed flow. Don't let the size fool you into thinking freestone: the Mo fishes like a giant spring creek, weed-rich and insect-mad, the trout pods sipping on long glassy flats and hanging in the seams below the islands. The bed is gravel and rooted weed; the banks are grass and rock. Wading the edges and the inside flats is straightforward, but the main river is too big and too deep to cross, and a boat is how most of it gets fished.

Wading: Too big and deep to cross on foot

  • Limestone
  • Unconfined
  • Pool riffle
  • Large river
Seasons & zones
  • Trout1 January → 31 December
Other water nearby · 5