Spring Creek · Limestone · Minnesota, US

Whitewater River

Whitewater River terrain map

The Whitewater and its three branches through Whitewater State Park are the busy, beloved heart of southeast Minnesota trout fishing — stocked browns, rainbows and brookies in postcard limestone bluff country.

Tomorrow · A proper day on the water
Pink Shrimp
Forecast · Tomorrow
A proper day on the water
A proper day for it. Work the seams with an upstream nymph, switch to the dry when they show.
75% projected
Today's fly
Pink Shrimp
Pink Shrimp
Conditions on the water · Tomorrow
Estimate
Level
Dry recently
No gauge reading
Water temp16.8°C
ClarityClear
Weather24°C
WindN 12 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead3.5 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Brown Trout
Warm — slow
17°C est.ideal 10–16°C
0°14°28°
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 river flow could be better.
Likely species
Mayflies
Caddisflies
terrestrials
Hatch timeline · tomorrowPeak at 7am

12pm(now) — Grasshopper (Eastern)

Stage: Terrestrials on topApproach: Dry flyActivity: 72%
Also:Reed Smut70%Trico (Eastern)48%
Peak emergence windowWeather boostEmergence building7 food groups active

Peak activity at 7am — Trico (Eastern) (Trico (Eastern), Weather boost)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 with Pro.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
SulphurHatch
2
3
2
Trico (Eastern)Hatch
2
3
3
2
Eastern Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Eastern Summer BWO (Drunella)Hatch
2
3
3
2

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

Ranked for today
Brown Trout fly box
Local fly shops: Driftless Fly Fishing Co.
Permits & access
Permit required — see local rules.
  • MN DNR — winter C&R then harvest season; verify dates and any special-reg reaches.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Garvin Brook
23 km
Brown trout · Brook trout · Rainbow trout
Trout Run Creek
34 km
75
Brown trout
Rush Creek
37 km
Brown trout · Brook trout
Duschee Creek
40 km
70
Brown trout
South Branch Root River
44 km
Brown trout · Brook trout · Rainbow trout
About this water

The Whitewater and its three branches through Whitewater State Park are the busy, beloved heart of southeast Minnesota trout fishing — stocked browns, rainbows and brookies in postcard limestone bluff country. Easy access and good water mean you won't be alone, but there's a lot of stream to spread out on.

  • Limestone
Water quality · US Clean Water Act
  • Aquatic life: Impaired
  • Recreation: Impaired
What this classification means

Recreation: Bacteria/pathogen advisory — mind wading cuts and immersion.

EPA ATTAINS assessment unit 'Whitewater River, Middle Fork' (MN07040003-F19), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Nutrients, Turbidity, Pathogens, Cause Unknown Impaired Biota. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · MN07040003-F19

The full read · show the working · for Brown Trout · confidence 90%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity67 × 12%8.0
Conditions total= 80
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout January 1 (winter catch-and-release) → September 30 (harvest from mid-April)
Related guides
Euro Nymphingsubsurface methods
Booking & contacts